Update to verify state setting
[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
7bb48f84 16static int extend_file(struct thread_data *td, struct fio_file *f)
25205e97 17{
ea443657 18 int r, new_layout = 0, unlink_file = 0, flags;
25205e97
JA
19 unsigned long long left;
20 unsigned int bs;
21 char *b;
b2a15192 22
4241ea8f
JA
23 if (read_only) {
24 log_err("fio: refusing extend of file due to read-only\n");
25 return 0;
26 }
27
507a702f
JA
28 /*
29 * check if we need to lay the file out complete again. fio
30 * does that for operations involving reads, or for writes
31 * where overwrite is set
32 */
33 if (td_read(td) || (td_write(td) && td->o.overwrite))
34 new_layout = 1;
ea443657
JA
35 if (td_write(td) && !td->o.overwrite)
36 unlink_file = 1;
507a702f 37
6ae1f57f 38 if (unlink_file || new_layout) {
982016d6 39 if ((unlink(f->file_name) < 0) && (errno != ENOENT)) {
7bb48f84
JA
40 td_verror(td, errno, "unlink");
41 return 1;
42 }
43 }
44
507a702f
JA
45 flags = O_WRONLY | O_CREAT;
46 if (new_layout)
47 flags |= O_TRUNC;
48
ee56ad50 49 dprint(FD_FILE, "open file %s, flags %x\n", f->file_name, flags);
507a702f 50 f->fd = open(f->file_name, flags, 0644);
53cdc686 51 if (f->fd < 0) {
e1161c32 52 td_verror(td, errno, "open");
53cdc686
JA
53 return 1;
54 }
55
fc74ac1d
SL
56 if (!new_layout)
57 goto done;
58
ee56ad50
JA
59 dprint(FD_FILE, "truncate file %s, size %llu\n", f->file_name,
60 f->real_file_size);
7bb48f84 61 if (ftruncate(f->fd, f->real_file_size) == -1) {
e1161c32 62 td_verror(td, errno, "ftruncate");
53cdc686
JA
63 goto err;
64 }
65
ee56ad50
JA
66 dprint(FD_FILE, "fallocate file %s, size %llu\n", f->file_name,
67 f->real_file_size);
7bb48f84 68 if (posix_fallocate(f->fd, 0, f->real_file_size) < 0) {
e1161c32 69 td_verror(td, errno, "posix_fallocate");
40f8298c
JA
70 goto err;
71 }
72
2dc1bbeb
JA
73 b = malloc(td->o.max_bs[DDIR_WRITE]);
74 memset(b, 0, td->o.max_bs[DDIR_WRITE]);
53cdc686 75
7bb48f84 76 left = f->real_file_size;
53cdc686 77 while (left && !td->terminate) {
2dc1bbeb 78 bs = td->o.max_bs[DDIR_WRITE];
53cdc686
JA
79 if (bs > left)
80 bs = left;
81
82 r = write(f->fd, b, bs);
83
84 if (r == (int) bs) {
85 left -= bs;
86 continue;
87 } else {
88 if (r < 0)
e1161c32 89 td_verror(td, errno, "write");
53cdc686 90 else
e1161c32 91 td_verror(td, EIO, "write");
53cdc686
JA
92
93 break;
94 }
95 }
96
97 if (td->terminate)
98 unlink(f->file_name);
2dc1bbeb 99 else if (td->o.create_fsync)
53cdc686
JA
100 fsync(f->fd);
101
102 free(b);
507a702f 103done:
53cdc686
JA
104 close(f->fd);
105 f->fd = -1;
106 return 0;
107err:
108 close(f->fd);
109 f->fd = -1;
110 return 1;
111}
112
7bb48f84 113static unsigned long long get_rand_file_size(struct thread_data *td)
9c60ce64 114{
9c60ce64
JA
115 unsigned long long ret;
116 long r;
117
9c60ce64 118 r = os_random_long(&td->file_size_state);
d11a531f 119 ret = td->o.file_size_low + (unsigned long long) ((double) (td->o.file_size_high - td->o.file_size_low) * (r / (RAND_MAX + 1.0)));
2dc1bbeb 120 ret -= (ret % td->o.rw_min_bs);
9c60ce64
JA
121 return ret;
122}
123
53cdc686
JA
124static int file_size(struct thread_data *td, struct fio_file *f)
125{
126 struct stat st;
127
7bb48f84
JA
128 if (fstat(f->fd, &st) == -1) {
129 td_verror(td, errno, "fstat");
130 return 1;
131 }
53cdc686 132
7bb48f84 133 f->real_file_size = st.st_size;
53cdc686
JA
134 return 0;
135}
136
137static int bdev_size(struct thread_data *td, struct fio_file *f)
138{
139 unsigned long long bytes;
140 int r;
141
142 r = blockdev_size(f->fd, &bytes);
143 if (r) {
e1161c32 144 td_verror(td, r, "blockdev_size");
53cdc686
JA
145 return 1;
146 }
147
148 f->real_file_size = bytes;
53cdc686
JA
149 return 0;
150}
151
152static int get_file_size(struct thread_data *td, struct fio_file *f)
153{
154 int ret = 0;
155
409b3417
JA
156 if (f->flags & FIO_SIZE_KNOWN)
157 return 0;
158
7bb48f84
JA
159 if (f->filetype == FIO_TYPE_FILE)
160 ret = file_size(td, f);
161 else if (f->filetype == FIO_TYPE_BD)
53cdc686
JA
162 ret = bdev_size(td, f);
163 else
164 f->real_file_size = -1;
165
166 if (ret)
167 return ret;
168
169 if (f->file_offset > f->real_file_size) {
2dc1bbeb 170 log_err("%s: offset extends end (%Lu > %Lu)\n", td->o.name, f->file_offset, f->real_file_size);
53cdc686
JA
171 return 1;
172 }
173
409b3417 174 f->flags |= FIO_SIZE_KNOWN;
53cdc686
JA
175 return 0;
176}
177
e5b401d4
JA
178int file_invalidate_cache(struct thread_data *td, struct fio_file *f)
179{
180 int ret = 0;
181
ee56ad50
JA
182 dprint(FD_IO, "invalidate cache (%d)\n", td->o.odirect);
183
2dc1bbeb 184 if (td->o.odirect)
b5af8293
JA
185 return 0;
186
e5b401d4
JA
187 /*
188 * FIXME: add blockdev flushing too
189 */
b5af8293 190 if (f->mmap)
7bb48f84 191 ret = madvise(f->mmap, f->io_size, MADV_DONTNEED);
467d1b6b 192 else if (f->filetype == FIO_TYPE_FILE)
7bb48f84 193 ret = fadvise(f->fd, f->file_offset, f->io_size, POSIX_FADV_DONTNEED);
7e0e25c9 194 else if (f->filetype == FIO_TYPE_BD) {
b5af8293 195 ret = blockdev_invalidate_cache(f->fd);
7e0e25c9 196 if (ret < 0 && errno == EACCES && geteuid()) {
7172cfe8
JA
197 if (!root_warn) {
198 log_err("fio: only root may flush block devices. Cache flush bypassed!\n");
199 root_warn = 1;
200 }
7e0e25c9
JA
201 ret = 0;
202 }
b5605e9d 203 } else if (f->filetype == FIO_TYPE_CHAR || f->filetype == FIO_TYPE_PIPE)
e5b401d4
JA
204 ret = 0;
205
206 if (ret < 0) {
e1161c32 207 td_verror(td, errno, "invalidate_cache");
e5b401d4
JA
208 return 1;
209 }
210
ad2da605 211 return ret;
e5b401d4
JA
212}
213
6977bcd0 214int generic_close_file(struct thread_data fio_unused *td, struct fio_file *f)
53cdc686 215{
6977bcd0
JA
216 int ret = 0;
217
ee56ad50 218 dprint(FD_FILE, "fd close %s\n", f->file_name);
4906e0b5
JA
219
220 remove_file_hash(f);
221
6977bcd0
JA
222 if (close(f->fd) < 0)
223 ret = errno;
224
b5af8293 225 f->fd = -1;
6977bcd0 226 return ret;
53cdc686
JA
227}
228
4d4e80f2 229static int file_lookup_open(struct fio_file *f, int flags)
53cdc686 230{
29c1349f 231 struct fio_file *__f;
4d4e80f2
JA
232 int from_hash;
233
234 __f = lookup_file_hash(f->file_name);
235 if (__f) {
9efef3c4 236 dprint(FD_FILE, "found file in hash %s\n", f->file_name);
4d4e80f2
JA
237 /*
238 * racy, need the __f->lock locked
239 */
240 f->lock = __f->lock;
241 f->lock_owner = __f->lock_owner;
242 f->lock_batch = __f->lock_batch;
243 f->lock_ddir = __f->lock_ddir;
244 f->fd = dup(__f->fd);
245 f->references++;
246 from_hash = 1;
247 } else {
9efef3c4 248 dprint(FD_FILE, "file not found in hash %s\n", f->file_name);
4d4e80f2
JA
249 f->fd = open(f->file_name, flags, 0600);
250 from_hash = 0;
251 }
252
253 return from_hash;
254}
255
256int generic_open_file(struct thread_data *td, struct fio_file *f)
257{
66159828 258 int is_std = 0;
53cdc686 259 int flags = 0;
29c1349f 260 int from_hash = 0;
53cdc686 261
ee56ad50
JA
262 dprint(FD_FILE, "fd open %s\n", f->file_name);
263
66159828
JA
264 if (!strcmp(f->file_name, "-")) {
265 if (td_rw(td)) {
266 log_err("fio: can't read/write to stdin/out\n");
267 return 1;
268 }
269 is_std = 1;
ce98fa66
JA
270
271 /*
272 * move output logging to stderr, if we are writing to stdout
273 */
274 if (td_write(td))
275 f_out = stderr;
66159828
JA
276 }
277
2dc1bbeb 278 if (td->o.odirect)
2fd233b7 279 flags |= OS_O_DIRECT;
2dc1bbeb 280 if (td->o.sync_io)
2fd233b7 281 flags |= O_SYNC;
ad92396c
JA
282 if (f->filetype != FIO_TYPE_FILE)
283 flags |= O_NOATIME;
53cdc686 284
056f3459 285open_again:
660a1cb5 286 if (td_write(td)) {
4241ea8f
JA
287 assert(!read_only);
288
2fd233b7 289 flags |= O_RDWR;
53cdc686 290
af52b345 291 if (f->filetype == FIO_TYPE_FILE)
2fd233b7 292 flags |= O_CREAT;
2fd233b7 293
66159828
JA
294 if (is_std)
295 f->fd = dup(STDOUT_FILENO);
4d4e80f2
JA
296 else
297 from_hash = file_lookup_open(f, flags);
2fd233b7 298 } else {
4241ea8f 299 if (f->filetype == FIO_TYPE_CHAR && !read_only)
2fd233b7
JA
300 flags |= O_RDWR;
301 else
302 flags |= O_RDONLY;
303
66159828
JA
304 if (is_std)
305 f->fd = dup(STDIN_FILENO);
4d4e80f2
JA
306 else
307 from_hash = file_lookup_open(f, flags);
53cdc686
JA
308 }
309
310 if (f->fd == -1) {
e4e33258 311 char buf[FIO_VERROR_SIZE];
e1161c32
JA
312 int __e = errno;
313
056f3459
AC
314 if (errno == EPERM && (flags & O_NOATIME)) {
315 flags &= ~O_NOATIME;
316 goto open_again;
317 }
318
e4e33258
JA
319 snprintf(buf, sizeof(buf) - 1, "open(%s)", f->file_name);
320
321 td_verror(td, __e, buf);
53cdc686
JA
322 }
323
b5af8293
JA
324 if (get_file_size(td, f))
325 goto err;
326
29c1349f
JA
327 if (!from_hash && f->fd != -1) {
328 if (add_file_hash(f)) {
329 int ret;
330
331 /*
332 * OK to ignore, we haven't done anything with it
333 */
334 ret = generic_close_file(td, f);
335 goto open_again;
336 }
337 }
4906e0b5 338
53cdc686 339 return 0;
b5af8293
JA
340err:
341 close(f->fd);
342 return 1;
343}
344
21972cde
JA
345int open_files(struct thread_data *td)
346{
347 struct fio_file *f;
af52b345
JA
348 unsigned int i;
349 int err = 0;
21972cde 350
ee56ad50
JA
351 dprint(FD_FILE, "open files\n");
352
21972cde 353 for_each_file(td, f, i) {
b5af8293 354 err = td_io_open_file(td, f);
9bf27b45
JA
355 if (err) {
356 if (td->error == EMFILE) {
357 log_err("fio: limited open files to: %d\n", td->nr_open_files);
358 td->o.open_files = td->nr_open_files;
359 err = 0;
360 clear_error(td);
361 }
21972cde 362 break;
9bf27b45 363 }
b5af8293 364
2dc1bbeb 365 if (td->o.open_files == td->nr_open_files)
b5af8293 366 break;
21972cde
JA
367 }
368
7abf833d
JA
369 if (!err)
370 return 0;
371
bdb4e2e9 372 for_each_file(td, f, i)
b5af8293 373 td_io_close_file(td, f);
7abf833d 374
21972cde
JA
375 return err;
376}
377
7bb48f84
JA
378/*
379 * open/close all files, so that ->real_file_size gets set
380 */
bab3fd58 381static int get_file_sizes(struct thread_data *td)
7bb48f84
JA
382{
383 struct fio_file *f;
384 unsigned int i;
bab3fd58 385 int err = 0;
7bb48f84
JA
386
387 for_each_file(td, f, i) {
9efef3c4
JA
388 dprint(FD_FILE, "get file size for %p/%d/%p\n", f, i, f->file_name);
389
bab3fd58 390 if (td->io_ops->open_file(td, f)) {
40b44f4a
JA
391 if (td->error != ENOENT) {
392 log_err("%s\n", td->verror);
393 err = 1;
394 }
541d66d7 395 clear_error(td);
07eb79df
JA
396 } else {
397 if (td->io_ops->close_file)
398 td->io_ops->close_file(td, f);
399 }
409b3417
JA
400
401 if (f->real_file_size == -1ULL && td->o.size)
402 f->real_file_size = td->o.size / td->o.nr_files;
7bb48f84 403 }
bab3fd58
JA
404
405 return err;
7bb48f84
JA
406}
407
408/*
409 * Open the files and setup files sizes, creating files if necessary.
410 */
53cdc686
JA
411int setup_files(struct thread_data *td)
412{
7bb48f84 413 unsigned long long total_size, extend_size;
53cdc686 414 struct fio_file *f;
af52b345 415 unsigned int i;
000b0803 416 int err = 0, need_extend;
53cdc686 417
ee56ad50
JA
418 dprint(FD_FILE, "setup files\n");
419
53cdc686
JA
420 /*
421 * if ioengine defines a setup() method, it's responsible for
7bb48f84
JA
422 * opening the files and setting f->real_file_size to indicate
423 * the valid range for that file.
53cdc686
JA
424 */
425 if (td->io_ops->setup)
7bb48f84
JA
426 err = td->io_ops->setup(td);
427 else
bab3fd58 428 err = get_file_sizes(td);
53cdc686 429
f1027063
JA
430 if (err)
431 return err;
432
0a7eb121 433 /*
7bb48f84
JA
434 * check sizes. if the files/devices do not exist and the size
435 * isn't passed to fio, abort.
0a7eb121 436 */
7bb48f84
JA
437 total_size = 0;
438 for_each_file(td, f, i) {
439 if (f->real_file_size == -1ULL)
440 total_size = -1ULL;
441 else
442 total_size += f->real_file_size;
443 }
0a7eb121 444
7bb48f84
JA
445 /*
446 * device/file sizes are zero and no size given, punt
447 */
1f809d15 448 if ((!total_size || total_size == -1ULL) && !td->o.size &&
aa31f1f1 449 !(td->io_ops->flags & FIO_NOIO) && !td->o.fill_device) {
7bb48f84 450 log_err("%s: you need to specify size=\n", td->o.name);
e1161c32 451 td_verror(td, EINVAL, "total_file_size");
53cdc686
JA
452 return 1;
453 }
454
7bb48f84
JA
455 /*
456 * now file sizes are known, so we can set ->io_size. if size= is
457 * not given, ->io_size is just equal to ->real_file_size. if size
458 * is given, ->io_size is size / nr_files.
459 */
460 extend_size = total_size = 0;
461 need_extend = 0;
462 for_each_file(td, f, i) {
bcdedd0a
YHJT
463 f->file_offset = td->o.start_offset;
464
7bb48f84
JA
465 if (!td->o.file_size_low) {
466 /*
467 * no file size range given, file size is equal to
468 * total size divided by number of files. if that is
469 * zero, set it to the real file size.
470 */
471 f->io_size = td->o.size / td->o.nr_files;
65bdb10a 472 if (!f->io_size)
273f8c91 473 f->io_size = f->real_file_size - f->file_offset;
7bb48f84
JA
474 } else if (f->real_file_size < td->o.file_size_low ||
475 f->real_file_size > td->o.file_size_high) {
bcdedd0a
YHJT
476 if (f->file_offset > td->o.file_size_low)
477 goto err_offset;
7bb48f84
JA
478 /*
479 * file size given. if it's fixed, use that. if it's a
480 * range, generate a random size in-between.
481 */
482 if (td->o.file_size_low == td->o.file_size_high)
bcdedd0a 483 f->io_size = td->o.file_size_low - f->file_offset;
7bb48f84 484 else
bcdedd0a 485 f->io_size = get_rand_file_size(td) - f->file_offset;
65bdb10a 486 } else
bcdedd0a 487 f->io_size = f->real_file_size - f->file_offset;
53cdc686 488
7bb48f84
JA
489 if (f->io_size == -1ULL)
490 total_size = -1ULL;
491 else
492 total_size += f->io_size;
493
494 if (f->filetype == FIO_TYPE_FILE &&
bcdedd0a 495 (f->io_size + f->file_offset) > f->real_file_size &&
7bb48f84
JA
496 !(td->io_ops->flags & FIO_DISKLESSIO)) {
497 need_extend++;
bcdedd0a 498 extend_size += (f->io_size + f->file_offset);
7bb48f84 499 f->flags |= FIO_FILE_EXTEND;
bcdedd0a 500 }
7bb48f84 501 }
53cdc686 502
2298290e 503 if (!td->o.size || td->o.size > total_size)
7bb48f84 504 td->o.size = total_size;
21972cde 505
7bb48f84
JA
506 /*
507 * See if we need to extend some files
508 */
509 if (need_extend) {
510 temp_stall_ts = 1;
f627d8ae 511 log_info("%s: Laying out IO file(s) (%u file(s) / %LuMiB)\n",
7bb48f84
JA
512 td->o.name, need_extend, extend_size >> 20);
513
514 for_each_file(td, f, i) {
515 if (!(f->flags & FIO_FILE_EXTEND))
516 continue;
517
409b3417 518 assert(f->filetype == FIO_TYPE_FILE);
7bb48f84 519 f->flags &= ~FIO_FILE_EXTEND;
bcdedd0a 520 f->real_file_size = (f->io_size + f->file_offset);
7bb48f84
JA
521 err = extend_file(td, f);
522 if (err)
523 break;
524 }
525 temp_stall_ts = 0;
526 }
527
528 if (err)
529 return err;
530
531 if (!td->o.zone_size)
532 td->o.zone_size = td->o.size;
533
ea966f81
JA
534 /*
535 * iolog already set the total io size, if we read back
536 * stored entries.
537 */
538 if (!td->o.read_iolog_file)
539 td->total_io_size = td->o.size * td->o.loops;
7bb48f84 540 return 0;
bcdedd0a
YHJT
541err_offset:
542 log_err("%s: you need to specify valid offset=\n", td->o.name);
543 return 1;
53cdc686
JA
544}
545
68727076
JA
546int init_random_map(struct thread_data *td)
547{
509eab12 548 unsigned long long blocks, num_maps;
68727076
JA
549 struct fio_file *f;
550 unsigned int i;
551
de8dd119 552 if (td->o.norandommap || !td_random(td))
68727076
JA
553 return 0;
554
555 for_each_file(td, f, i) {
509eab12
JA
556 blocks = (f->real_file_size + td->o.rw_min_bs - 1) / (unsigned long long) td->o.rw_min_bs;
557 num_maps = (blocks + BLOCKS_PER_MAP-1)/ (unsigned long long) BLOCKS_PER_MAP;
f17c4392 558 f->file_map = smalloc(num_maps * sizeof(long));
68727076
JA
559 if (!f->file_map) {
560 log_err("fio: failed allocating random map. If running a large number of jobs, try the 'norandommap' option\n");
561 return 1;
562 }
563 f->num_maps = num_maps;
68727076
JA
564 }
565
566 return 0;
567}
568
53cdc686
JA
569void close_files(struct thread_data *td)
570{
0ab8db89 571 struct fio_file *f;
af52b345 572 unsigned int i;
53cdc686 573
24ffd2c2
JA
574 for_each_file(td, f, i)
575 td_io_close_file(td, f);
576}
577
578void close_and_free_files(struct thread_data *td)
579{
580 struct fio_file *f;
581 unsigned int i;
582
ee56ad50
JA
583 dprint(FD_FILE, "close files\n");
584
0ab8db89 585 for_each_file(td, f, i) {
a9b7b305 586 if (td->o.unlink && f->filetype == FIO_TYPE_FILE)
132ad46d 587 unlink(f->file_name);
bdb4e2e9 588
b5af8293 589 td_io_close_file(td, f);
b3dc7f07 590
f17c4392 591 sfree(f->file_name);
fa1da865
JA
592 f->file_name = NULL;
593
c343981b 594 if (f->file_map) {
f17c4392 595 sfree(f->file_map);
c343981b
JA
596 f->file_map = NULL;
597 }
78d99e6a 598 sfree(f);
53cdc686 599 }
b4a6a59a 600
2dc1bbeb 601 td->o.filename = NULL;
cade3ef4 602 free(td->files);
9efef3c4 603 td->files_index = 0;
b4a6a59a 604 td->files = NULL;
2dc1bbeb 605 td->o.nr_files = 0;
53cdc686 606}
af52b345 607
e3bab463 608static void get_file_type(struct fio_file *f)
af52b345
JA
609{
610 struct stat sb;
611
66159828
JA
612 if (!strcmp(f->file_name, "-"))
613 f->filetype = FIO_TYPE_PIPE;
614 else
615 f->filetype = FIO_TYPE_FILE;
af52b345 616
e3bab463 617 if (!lstat(f->file_name, &sb)) {
af52b345
JA
618 if (S_ISBLK(sb.st_mode))
619 f->filetype = FIO_TYPE_BD;
620 else if (S_ISCHR(sb.st_mode))
621 f->filetype = FIO_TYPE_CHAR;
b5605e9d
JA
622 else if (S_ISFIFO(sb.st_mode))
623 f->filetype = FIO_TYPE_PIPE;
af52b345
JA
624 }
625}
626
f29b25a3 627int add_file(struct thread_data *td, const char *fname)
af52b345 628{
7b4e4fe5 629 int cur_files = td->files_index;
bd0ee748 630 char file_name[PATH_MAX];
af52b345 631 struct fio_file *f;
bd0ee748 632 int len = 0;
af52b345 633
ee56ad50
JA
634 dprint(FD_FILE, "add file %s\n", fname);
635
f17c4392 636 f = smalloc(sizeof(*f));
af52b345 637 f->fd = -1;
bd0ee748 638
9efef3c4 639 dprint(FD_FILE, "resize file array to %d files\n", cur_files + 1);
126d65c6 640
9efef3c4 641 td->files = realloc(td->files, (cur_files + 1) * sizeof(f));
126d65c6
JA
642 td->files[cur_files] = f;
643
07eb79df
JA
644 /*
645 * init function, io engine may not be loaded yet
646 */
647 if (td->io_ops && (td->io_ops->flags & FIO_DISKLESSIO))
648 f->real_file_size = -1ULL;
649
bd0ee748
JA
650 if (td->o.directory)
651 len = sprintf(file_name, "%s/", td->o.directory);
652
653 sprintf(file_name + len, "%s", fname);
f17c4392 654 f->file_name = smalloc_strdup(file_name);
af52b345 655
e3bab463 656 get_file_type(f);
af52b345 657
4d4e80f2
JA
658 switch (td->o.file_lock_mode) {
659 case FILE_LOCK_NONE:
660 break;
661 case FILE_LOCK_READWRITE:
662 f->lock = fio_mutex_rw_init();
663 break;
664 case FILE_LOCK_EXCLUSIVE:
665 f->lock = fio_mutex_init(1);
666 break;
667 default:
668 log_err("fio: unknown lock mode: %d\n", td->o.file_lock_mode);
669 assert(0);
670 }
29c1349f 671
7b4e4fe5 672 td->files_index++;
1549441c
JA
673 if (f->filetype == FIO_TYPE_FILE)
674 td->nr_normal_files++;
f29b25a3 675
9efef3c4
JA
676 dprint(FD_FILE, "file %p \"%s\" added at %d\n", f, f->file_name, cur_files);
677
f29b25a3 678 return cur_files;
af52b345 679}
0ad920e7
JA
680
681void get_file(struct fio_file *f)
682{
8172fe97 683 dprint(FD_FILE, "get file %s, ref=%d\n", f->file_name, f->references);
97af62ce 684 assert(f->flags & FIO_FILE_OPEN);
0ad920e7
JA
685 f->references++;
686}
687
6977bcd0 688int put_file(struct thread_data *td, struct fio_file *f)
0ad920e7 689{
6977bcd0
JA
690 int ret = 0;
691
8172fe97 692 dprint(FD_FILE, "put file %s, ref=%d\n", f->file_name, f->references);
ee56ad50 693
0ad920e7 694 if (!(f->flags & FIO_FILE_OPEN))
6977bcd0 695 return 0;
0ad920e7
JA
696
697 assert(f->references);
698 if (--f->references)
6977bcd0 699 return 0;
0ad920e7 700
d424d4dd 701 if (should_fsync(td) && td->o.fsync_on_close)
ebb1415f
JA
702 fsync(f->fd);
703
0ad920e7 704 if (td->io_ops->close_file)
6977bcd0 705 ret = td->io_ops->close_file(td, f);
1020a139 706
0ad920e7
JA
707 td->nr_open_files--;
708 f->flags &= ~FIO_FILE_OPEN;
6977bcd0 709 return ret;
0ad920e7 710}
bbf6b540 711
4d4e80f2 712void lock_file(struct thread_data *td, struct fio_file *f, enum fio_ddir ddir)
b2bd2bd9 713{
4d4e80f2
JA
714 if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE)
715 return;
29c1349f 716
4d4e80f2
JA
717 if (f->lock_owner == td && f->lock_batch--)
718 return;
719
720 if (td->o.file_lock_mode == FILE_LOCK_READWRITE) {
721 if (ddir == DDIR_READ)
722 fio_mutex_down_read(f->lock);
723 else
724 fio_mutex_down_write(f->lock);
725 } else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE)
726 fio_mutex_down(f->lock);
727
728 f->lock_owner = td;
729 f->lock_batch = td->o.lockfile_batch;
730 f->lock_ddir = ddir;
b2bd2bd9
JA
731}
732
4d4e80f2 733void unlock_file(struct thread_data *td, struct fio_file *f)
b2bd2bd9 734{
4d4e80f2
JA
735 if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE)
736 return;
737 if (f->lock_batch)
738 return;
739
740 if (td->o.file_lock_mode == FILE_LOCK_READWRITE) {
741 const int is_read = f->lock_ddir == DDIR_READ;
742 int val = fio_mutex_getval(f->lock);
29c1349f 743
4d4e80f2
JA
744 if ((is_read && val == 1) || (!is_read && val == -1))
745 f->lock_owner = NULL;
29c1349f 746
4d4e80f2
JA
747 if (is_read)
748 fio_mutex_up_read(f->lock);
749 else
750 fio_mutex_up_write(f->lock);
751 } else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE) {
752 int val = fio_mutex_getval(f->lock);
753
754 if (val == 0)
755 f->lock_owner = NULL;
756
757 fio_mutex_up(f->lock);
29c1349f 758 }
b2bd2bd9
JA
759}
760
4d4e80f2
JA
761void unlock_file_all(struct thread_data *td, struct fio_file *f)
762{
763 if (f->lock_owner != td)
764 return;
765
766 f->lock_batch = 0;
767 unlock_file(td, f);
768}
769
bbf6b540
JA
770static int recurse_dir(struct thread_data *td, const char *dirname)
771{
772 struct dirent *dir;
773 int ret = 0;
774 DIR *D;
775
776 D = opendir(dirname);
777 if (!D) {
0ddb270c
JA
778 char buf[FIO_VERROR_SIZE];
779
780 snprintf(buf, FIO_VERROR_SIZE - 1, "opendir(%s)", dirname);
781 td_verror(td, errno, buf);
bbf6b540
JA
782 return 1;
783 }
784
785 while ((dir = readdir(D)) != NULL) {
786 char full_path[PATH_MAX];
787 struct stat sb;
788
e85b2b83
JA
789 if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, ".."))
790 continue;
96d32d51 791
bbf6b540
JA
792 sprintf(full_path, "%s/%s", dirname, dir->d_name);
793
794 if (lstat(full_path, &sb) == -1) {
795 if (errno != ENOENT) {
796 td_verror(td, errno, "stat");
797 return 1;
798 }
799 }
800
801 if (S_ISREG(sb.st_mode)) {
802 add_file(td, full_path);
2dc1bbeb 803 td->o.nr_files++;
bbf6b540
JA
804 continue;
805 }
0ddb270c
JA
806 if (!S_ISDIR(sb.st_mode))
807 continue;
bbf6b540 808
bbf6b540
JA
809 if ((ret = recurse_dir(td, full_path)) != 0)
810 break;
811 }
812
813 closedir(D);
814 return ret;
815}
816
817int add_dir_files(struct thread_data *td, const char *path)
818{
0ddb270c
JA
819 int ret = recurse_dir(td, path);
820
821 if (!ret)
822 log_info("fio: opendir added %d files\n", td->o.nr_files);
823
824 return ret;
bbf6b540 825}
cade3ef4
JA
826
827void dup_files(struct thread_data *td, struct thread_data *org)
828{
829 struct fio_file *f;
830 unsigned int i;
9efef3c4
JA
831
832 dprint(FD_FILE, "dup files: %d\n", org->files_index);
cade3ef4
JA
833
834 if (!org->files)
835 return;
836
9efef3c4 837 td->files = malloc(org->files_index * sizeof(f));
cade3ef4 838
9efef3c4 839 for_each_file(org, f, i) {
b0fe421a
JA
840 struct fio_file *__f;
841
f17c4392 842 __f = smalloc(sizeof(*__f));
b0fe421a 843
cade3ef4 844 if (f->file_name)
f17c4392 845 __f->file_name = smalloc_strdup(f->file_name);
b0fe421a
JA
846
847 td->files[i] = __f;
cade3ef4
JA
848 }
849}
f29b25a3
JA
850
851/*
852 * Returns the index that matches the filename, or -1 if not there
853 */
854int get_fileno(struct thread_data *td, const char *fname)
855{
856 struct fio_file *f;
857 unsigned int i;
858
859 for_each_file(td, f, i)
860 if (!strcmp(f->file_name, fname))
861 return i;
862
863 return -1;
864}
865
866/*
867 * For log usage, where we add/open/close files automatically
868 */
869void free_release_files(struct thread_data *td)
870{
871 close_files(td);
872 td->files_index = 0;
873 td->nr_normal_files = 0;
874}