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