Add support for multiple output formats
[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>
d74ac843 6#include <libgen.h>
53cdc686
JA
7#include <sys/stat.h>
8#include <sys/mman.h>
bbf6b540 9#include <sys/types.h>
53cdc686
JA
10
11#include "fio.h"
f17c4392 12#include "smalloc.h"
4906e0b5 13#include "filehash.h"
bcbfeefa 14#include "options.h"
ecc314ba 15#include "os/os.h"
2316296a 16#include "hash.h"
7ebd796f 17#include "lib/axmap.h"
53cdc686 18
97ac992c 19#ifdef CONFIG_LINUX_FALLOCATE
a596f047
EG
20#include <linux/falloc.h>
21#endif
22
7172cfe8
JA
23static int root_warn;
24
bcbfeefa
CE
25static FLIST_HEAD(filename_list);
26
c592b9fe
JA
27static inline void clear_error(struct thread_data *td)
28{
29 td->error = 0;
30 td->verror[0] = '\0';
31}
32
3baddf24
JA
33/*
34 * Leaves f->fd open on success, caller must close
35 */
7bb48f84 36static int extend_file(struct thread_data *td, struct fio_file *f)
25205e97 37{
ea443657 38 int r, new_layout = 0, unlink_file = 0, flags;
25205e97
JA
39 unsigned long long left;
40 unsigned int bs;
f3e1eb23 41 char *b = NULL;
b2a15192 42
4241ea8f
JA
43 if (read_only) {
44 log_err("fio: refusing extend of file due to read-only\n");
45 return 0;
46 }
47
507a702f
JA
48 /*
49 * check if we need to lay the file out complete again. fio
50 * does that for operations involving reads, or for writes
51 * where overwrite is set
52 */
1417daeb
JA
53 if (td_read(td) ||
54 (td_write(td) && td->o.overwrite && !td->o.file_append) ||
ffdfabd4 55 (td_write(td) && td->io_ops->flags & FIO_NOEXTEND))
507a702f 56 new_layout = 1;
1417daeb 57 if (td_write(td) && !td->o.overwrite && !td->o.file_append)
ea443657 58 unlink_file = 1;
507a702f 59
6ae1f57f 60 if (unlink_file || new_layout) {
bd199f2b 61 dprint(FD_FILE, "layout unlink %s\n", f->file_name);
38ef9c90 62 if ((td_io_unlink_file(td, f) < 0) && (errno != ENOENT)) {
7bb48f84
JA
63 td_verror(td, errno, "unlink");
64 return 1;
65 }
66 }
67
2378826d
JA
68 flags = O_WRONLY;
69 if (td->o.allow_create)
70 flags |= O_CREAT;
507a702f
JA
71 if (new_layout)
72 flags |= O_TRUNC;
73
9c0f3f32
BC
74#ifdef WIN32
75 flags |= _O_BINARY;
76#endif
77
ee56ad50 78 dprint(FD_FILE, "open file %s, flags %x\n", f->file_name, flags);
507a702f 79 f->fd = open(f->file_name, flags, 0644);
53cdc686 80 if (f->fd < 0) {
2378826d
JA
81 int err = errno;
82
83 if (err == ENOENT && !td->o.allow_create)
84 log_err("fio: file creation disallowed by "
85 "allow_file_create=0\n");
86 else
87 td_verror(td, err, "open");
53cdc686
JA
88 return 1;
89 }
90
97ac992c 91#ifdef CONFIG_POSIX_FALLOCATE
a596f047
EG
92 if (!td->o.fill_device) {
93 switch (td->o.fallocate_mode) {
94 case FIO_FALLOCATE_NONE:
95 break;
96 case FIO_FALLOCATE_POSIX:
97 dprint(FD_FILE, "posix_fallocate file %s size %llu\n",
4b91ee8f
JA
98 f->file_name,
99 (unsigned long long) f->real_file_size);
a596f047
EG
100
101 r = posix_fallocate(f->fd, 0, f->real_file_size);
102 if (r > 0) {
103 log_err("fio: posix_fallocate fails: %s\n",
104 strerror(r));
105 }
106 break;
97ac992c 107#ifdef CONFIG_LINUX_FALLOCATE
a596f047
EG
108 case FIO_FALLOCATE_KEEP_SIZE:
109 dprint(FD_FILE,
110 "fallocate(FALLOC_FL_KEEP_SIZE) "
4b91ee8f
JA
111 "file %s size %llu\n", f->file_name,
112 (unsigned long long) f->real_file_size);
7bc8c2cf 113
a596f047
EG
114 r = fallocate(f->fd, FALLOC_FL_KEEP_SIZE, 0,
115 f->real_file_size);
888677a4 116 if (r != 0)
a596f047 117 td_verror(td, errno, "fallocate");
888677a4 118
a596f047 119 break;
97ac992c 120#endif /* CONFIG_LINUX_FALLOCATE */
a596f047
EG
121 default:
122 log_err("fio: unknown fallocate mode: %d\n",
123 td->o.fallocate_mode);
124 assert(0);
7bc8c2cf
JA
125 }
126 }
97ac992c 127#endif /* CONFIG_POSIX_FALLOCATE */
9b836561 128
fc74ac1d
SL
129 if (!new_layout)
130 goto done;
131
5e0074c2
JA
132 /*
133 * The size will be -1ULL when fill_device is used, so don't truncate
134 * or fallocate this file, just write it
135 */
136 if (!td->o.fill_device) {
137 dprint(FD_FILE, "truncate file %s, size %llu\n", f->file_name,
4b91ee8f 138 (unsigned long long) f->real_file_size);
5e0074c2 139 if (ftruncate(f->fd, f->real_file_size) == -1) {
3cd4c66f
J
140 if (errno != EFBIG) {
141 td_verror(td, errno, "ftruncate");
142 goto err;
143 }
5e0074c2 144 }
5e0074c2 145 }
40f8298c 146
2dc1bbeb 147 b = malloc(td->o.max_bs[DDIR_WRITE]);
53cdc686 148
7bb48f84 149 left = f->real_file_size;
53cdc686 150 while (left && !td->terminate) {
2dc1bbeb 151 bs = td->o.max_bs[DDIR_WRITE];
53cdc686
JA
152 if (bs > left)
153 bs = left;
154
cc86c395
JA
155 fill_io_buffer(td, b, bs, bs);
156
53cdc686
JA
157 r = write(f->fd, b, bs);
158
5e0074c2
JA
159 if (r > 0) {
160 left -= r;
53cdc686
JA
161 continue;
162 } else {
5e0074c2
JA
163 if (r < 0) {
164 int __e = errno;
165
166 if (__e == ENOSPC) {
167 if (td->o.fill_device)
168 break;
169 log_info("fio: ENOSPC on laying out "
170 "file, stopping\n");
171 break;
172 }
e1161c32 173 td_verror(td, errno, "write");
5e0074c2 174 } else
e1161c32 175 td_verror(td, EIO, "write");
53cdc686
JA
176
177 break;
178 }
179 }
180
ffdfabd4
JA
181 if (td->terminate) {
182 dprint(FD_FILE, "terminate unlink %s\n", f->file_name);
38ef9c90 183 td_io_unlink_file(td, f);
ffdfabd4 184 } else if (td->o.create_fsync) {
98e1ac4e
JA
185 if (fsync(f->fd) < 0) {
186 td_verror(td, errno, "fsync");
187 goto err;
188 }
189 }
0d1cd207 190 if (td->o.fill_device && !td_write(td)) {
d6aed795 191 fio_file_clear_size_known(f);
5e0074c2
JA
192 if (td_io_get_file_size(td, f))
193 goto err;
194 if (f->io_size > f->real_file_size)
195 f->io_size = f->real_file_size;
196 }
53cdc686
JA
197
198 free(b);
507a702f 199done:
53cdc686
JA
200 return 0;
201err:
202 close(f->fd);
203 f->fd = -1;
f3e1eb23
JA
204 if (b)
205 free(b);
53cdc686
JA
206 return 1;
207}
208
afad68f7
ZY
209static int pre_read_file(struct thread_data *td, struct fio_file *f)
210{
ef799a64 211 int ret = 0, r, did_open = 0, old_runstate;
afad68f7
ZY
212 unsigned long long left;
213 unsigned int bs;
214 char *b;
215
9c0d2241
JA
216 if (td->io_ops->flags & FIO_PIPEIO)
217 return 0;
218
d6aed795 219 if (!fio_file_open(f)) {
b0f65863
JA
220 if (td->io_ops->open_file(td, f)) {
221 log_err("fio: cannot pre-read, failed to open file\n");
222 return 1;
223 }
224 did_open = 1;
225 }
226
8edd973d 227 old_runstate = td_bump_runstate(td, TD_PRE_READING);
b0f65863 228
afad68f7
ZY
229 bs = td->o.max_bs[DDIR_READ];
230 b = malloc(bs);
231 memset(b, 0, bs);
232
ef799a64
JA
233 if (lseek(f->fd, f->file_offset, SEEK_SET) < 0) {
234 td_verror(td, errno, "lseek");
235 log_err("fio: failed to lseek pre-read file\n");
236 ret = 1;
237 goto error;
238 }
239
afad68f7
ZY
240 left = f->io_size;
241
242 while (left && !td->terminate) {
243 if (bs > left)
244 bs = left;
245
246 r = read(f->fd, b, bs);
247
248 if (r == (int) bs) {
249 left -= bs;
250 continue;
251 } else {
252 td_verror(td, EIO, "pre_read");
253 break;
254 }
255 }
256
ef799a64 257error:
8edd973d 258 td_restore_runstate(td, old_runstate);
b0f65863
JA
259
260 if (did_open)
261 td->io_ops->close_file(td, f);
ef799a64 262
afad68f7 263 free(b);
ef799a64 264 return ret;
afad68f7
ZY
265}
266
7bb48f84 267static unsigned long long get_rand_file_size(struct thread_data *td)
9c60ce64 268{
dc873b6f 269 unsigned long long ret, sized;
c3546b53 270 uint64_t frand_max;
1294c3ec 271 unsigned long r;
9c60ce64 272
c3546b53 273 frand_max = rand_max(&td->file_size_state);
d6b72507 274 r = __rand(&td->file_size_state);
54a21917 275 sized = td->o.file_size_high - td->o.file_size_low;
c3546b53 276 ret = (unsigned long long) ((double) sized * (r / (frand_max + 1.0)));
5ec10eaa 277 ret += td->o.file_size_low;
2dc1bbeb 278 ret -= (ret % td->o.rw_min_bs);
9c60ce64
JA
279 return ret;
280}
281
53cdc686
JA
282static int file_size(struct thread_data *td, struct fio_file *f)
283{
284 struct stat st;
285
df9c26b1 286 if (stat(f->file_name, &st) == -1) {
7bb48f84
JA
287 td_verror(td, errno, "fstat");
288 return 1;
289 }
53cdc686 290
7bb48f84 291 f->real_file_size = st.st_size;
53cdc686
JA
292 return 0;
293}
294
295static int bdev_size(struct thread_data *td, struct fio_file *f)
296{
9b836561 297 unsigned long long bytes = 0;
53cdc686
JA
298 int r;
299
df9c26b1
JA
300 if (td->io_ops->open_file(td, f)) {
301 log_err("fio: failed opening blockdev %s for size check\n",
302 f->file_name);
303 return 1;
304 }
305
ecc314ba 306 r = blockdev_size(f, &bytes);
53cdc686 307 if (r) {
e1161c32 308 td_verror(td, r, "blockdev_size");
df9c26b1 309 goto err;
53cdc686
JA
310 }
311
7ab077ab
JA
312 if (!bytes) {
313 log_err("%s: zero sized block device?\n", f->file_name);
df9c26b1 314 goto err;
7ab077ab
JA
315 }
316
53cdc686 317 f->real_file_size = bytes;
22a57ba8 318 td->io_ops->close_file(td, f);
53cdc686 319 return 0;
df9c26b1
JA
320err:
321 td->io_ops->close_file(td, f);
322 return 1;
53cdc686
JA
323}
324
4ccdccd1
JA
325static int char_size(struct thread_data *td, struct fio_file *f)
326{
327#ifdef FIO_HAVE_CHARDEV_SIZE
9b836561 328 unsigned long long bytes = 0;
4ccdccd1
JA
329 int r;
330
331 if (td->io_ops->open_file(td, f)) {
332 log_err("fio: failed opening blockdev %s for size check\n",
333 f->file_name);
334 return 1;
335 }
336
ecc314ba 337 r = chardev_size(f, &bytes);
4ccdccd1
JA
338 if (r) {
339 td_verror(td, r, "chardev_size");
340 goto err;
341 }
342
343 if (!bytes) {
344 log_err("%s: zero sized char device?\n", f->file_name);
345 goto err;
346 }
347
348 f->real_file_size = bytes;
349 td->io_ops->close_file(td, f);
350 return 0;
351err:
352 td->io_ops->close_file(td, f);
353 return 1;
354#else
355 f->real_file_size = -1ULL;
356 return 0;
357#endif
358}
359
53cdc686
JA
360static int get_file_size(struct thread_data *td, struct fio_file *f)
361{
362 int ret = 0;
363
d6aed795 364 if (fio_file_size_known(f))
409b3417
JA
365 return 0;
366
7bb48f84
JA
367 if (f->filetype == FIO_TYPE_FILE)
368 ret = file_size(td, f);
369 else if (f->filetype == FIO_TYPE_BD)
53cdc686 370 ret = bdev_size(td, f);
4ccdccd1
JA
371 else if (f->filetype == FIO_TYPE_CHAR)
372 ret = char_size(td, f);
53cdc686
JA
373 else
374 f->real_file_size = -1;
375
376 if (ret)
377 return ret;
378
379 if (f->file_offset > f->real_file_size) {
0f2152c1 380 log_err("%s: offset extends end (%llu > %llu)\n", td->o.name,
4e0a8fa2
JA
381 (unsigned long long) f->file_offset,
382 (unsigned long long) f->real_file_size);
53cdc686
JA
383 return 1;
384 }
385
d6aed795 386 fio_file_set_size_known(f);
53cdc686
JA
387 return 0;
388}
389
3baddf24
JA
390static int __file_invalidate_cache(struct thread_data *td, struct fio_file *f,
391 unsigned long long off,
392 unsigned long long len)
e5b401d4
JA
393{
394 int ret = 0;
395
c8931876
JA
396#ifdef CONFIG_ESX
397 return 0;
398#endif
399
5e0074c2 400 if (len == -1ULL)
3baddf24
JA
401 len = f->io_size;
402 if (off == -1ULL)
403 off = f->file_offset;
ee56ad50 404
0d1cd207
JA
405 if (len == -1ULL || off == -1ULL)
406 return 0;
407
3baddf24
JA
408 dprint(FD_IO, "invalidate cache %s: %llu/%llu\n", f->file_name, off,
409 len);
b5af8293 410
d9b100fc
JA
411 if (td->io_ops->invalidate)
412 ret = td->io_ops->invalidate(td, f);
03a32636 413 else if (f->filetype == FIO_TYPE_FILE)
ecc314ba 414 ret = posix_fadvise(f->fd, off, len, POSIX_FADV_DONTNEED);
03a32636 415 else if (f->filetype == FIO_TYPE_BD) {
2b9f9141
KR
416 int retry_count = 0;
417
ecc314ba 418 ret = blockdev_invalidate_cache(f);
2b9f9141
KR
419 while (ret < 0 && errno == EAGAIN && retry_count++ < 25) {
420 /*
421 * Linux multipath devices reject ioctl while
422 * the maps are being updated. That window can
423 * last tens of milliseconds; we'll try up to
424 * a quarter of a second.
425 */
426 usleep(10000);
427 ret = blockdev_invalidate_cache(f);
428 }
7e0e25c9 429 if (ret < 0 && errno == EACCES && geteuid()) {
7172cfe8 430 if (!root_warn) {
5ec10eaa
JA
431 log_err("fio: only root may flush block "
432 "devices. Cache flush bypassed!\n");
7172cfe8
JA
433 root_warn = 1;
434 }
7e0e25c9
JA
435 ret = 0;
436 }
b5605e9d 437 } else if (f->filetype == FIO_TYPE_CHAR || f->filetype == FIO_TYPE_PIPE)
e5b401d4
JA
438 ret = 0;
439
dfe11fd1
JA
440 /*
441 * Cache flushing isn't a fatal condition, and we know it will
442 * happen on some platforms where we don't have the proper
443 * function to flush eg block device caches. So just warn and
444 * continue on our way.
445 */
446 if (ret) {
447 log_info("fio: cache invalidation of %s failed: %s\n", f->file_name, strerror(errno));
448 ret = 0;
e5b401d4
JA
449 }
450
dfe11fd1 451 return 0;
3baddf24
JA
452
453}
454
455int file_invalidate_cache(struct thread_data *td, struct fio_file *f)
456{
d6aed795 457 if (!fio_file_open(f))
a5fb461f
JA
458 return 0;
459
5e0074c2 460 return __file_invalidate_cache(td, f, -1ULL, -1ULL);
e5b401d4
JA
461}
462
6977bcd0 463int generic_close_file(struct thread_data fio_unused *td, struct fio_file *f)
53cdc686 464{
6977bcd0
JA
465 int ret = 0;
466
ee56ad50 467 dprint(FD_FILE, "fd close %s\n", f->file_name);
4906e0b5
JA
468
469 remove_file_hash(f);
470
6977bcd0
JA
471 if (close(f->fd) < 0)
472 ret = errno;
473
b5af8293 474 f->fd = -1;
e6c4d732
JA
475
476 if (f->shadow_fd != -1) {
477 close(f->shadow_fd);
478 f->shadow_fd = -1;
479 }
480
57e54e08 481 f->engine_data = 0;
6977bcd0 482 return ret;
53cdc686
JA
483}
484
1ccc6dc7 485int file_lookup_open(struct fio_file *f, int flags)
53cdc686 486{
29c1349f 487 struct fio_file *__f;
4d4e80f2
JA
488 int from_hash;
489
490 __f = lookup_file_hash(f->file_name);
491 if (__f) {
9efef3c4 492 dprint(FD_FILE, "found file in hash %s\n", f->file_name);
4d4e80f2
JA
493 /*
494 * racy, need the __f->lock locked
495 */
496 f->lock = __f->lock;
4d4e80f2
JA
497 from_hash = 1;
498 } else {
9efef3c4 499 dprint(FD_FILE, "file not found in hash %s\n", f->file_name);
4d4e80f2
JA
500 from_hash = 0;
501 }
502
9c0f3f32
BC
503#ifdef WIN32
504 flags |= _O_BINARY;
505#endif
506
e8670ef8 507 f->fd = open(f->file_name, flags, 0600);
4d4e80f2
JA
508 return from_hash;
509}
510
e6c4d732
JA
511static int file_close_shadow_fds(struct thread_data *td)
512{
513 struct fio_file *f;
514 int num_closed = 0;
515 unsigned int i;
516
517 for_each_file(td, f, i) {
518 if (f->shadow_fd == -1)
519 continue;
520
521 close(f->shadow_fd);
522 f->shadow_fd = -1;
523 num_closed++;
524 }
525
526 return num_closed;
527}
528
4d4e80f2
JA
529int generic_open_file(struct thread_data *td, struct fio_file *f)
530{
66159828 531 int is_std = 0;
53cdc686 532 int flags = 0;
29c1349f 533 int from_hash = 0;
53cdc686 534
ee56ad50
JA
535 dprint(FD_FILE, "fd open %s\n", f->file_name);
536
66159828
JA
537 if (!strcmp(f->file_name, "-")) {
538 if (td_rw(td)) {
539 log_err("fio: can't read/write to stdin/out\n");
540 return 1;
541 }
542 is_std = 1;
ce98fa66
JA
543
544 /*
545 * move output logging to stderr, if we are writing to stdout
546 */
547 if (td_write(td))
548 f_out = stderr;
66159828
JA
549 }
550
6eaf09d6
SL
551 if (td_trim(td))
552 goto skip_flags;
2dc1bbeb 553 if (td->o.odirect)
2fd233b7 554 flags |= OS_O_DIRECT;
d01612f3
CM
555 if (td->o.oatomic) {
556 if (!FIO_O_ATOMIC) {
557 td_verror(td, EINVAL, "OS does not support atomic IO");
558 return 1;
559 }
560 flags |= OS_O_DIRECT | FIO_O_ATOMIC;
561 }
2dc1bbeb 562 if (td->o.sync_io)
2fd233b7 563 flags |= O_SYNC;
2378826d 564 if (td->o.create_on_open && td->o.allow_create)
814452bd 565 flags |= O_CREAT;
6eaf09d6
SL
566skip_flags:
567 if (f->filetype != FIO_TYPE_FILE)
568 flags |= FIO_O_NOATIME;
53cdc686 569
056f3459 570open_again:
660a1cb5 571 if (td_write(td)) {
17308158
JA
572 if (!read_only)
573 flags |= O_RDWR;
53cdc686 574
2378826d 575 if (f->filetype == FIO_TYPE_FILE && td->o.allow_create)
2fd233b7 576 flags |= O_CREAT;
2fd233b7 577
66159828
JA
578 if (is_std)
579 f->fd = dup(STDOUT_FILENO);
4d4e80f2
JA
580 else
581 from_hash = file_lookup_open(f, flags);
6eaf09d6 582 } else if (td_read(td)) {
4241ea8f 583 if (f->filetype == FIO_TYPE_CHAR && !read_only)
2fd233b7
JA
584 flags |= O_RDWR;
585 else
586 flags |= O_RDONLY;
587
66159828
JA
588 if (is_std)
589 f->fd = dup(STDIN_FILENO);
4d4e80f2
JA
590 else
591 from_hash = file_lookup_open(f, flags);
6eaf09d6
SL
592 } else { //td trim
593 flags |= O_RDWR;
594 from_hash = file_lookup_open(f, flags);
53cdc686
JA
595 }
596
597 if (f->fd == -1) {
e4e33258 598 char buf[FIO_VERROR_SIZE];
e1161c32
JA
599 int __e = errno;
600
835d9b9e 601 if (__e == EPERM && (flags & FIO_O_NOATIME)) {
5921e80c 602 flags &= ~FIO_O_NOATIME;
056f3459
AC
603 goto open_again;
604 }
e6c4d732
JA
605 if (__e == EMFILE && file_close_shadow_fds(td))
606 goto open_again;
056f3459 607
98ffb8f3 608 snprintf(buf, sizeof(buf), "open(%s)", f->file_name);
e4e33258 609
a93c5f04
JA
610 if (__e == EINVAL && (flags & OS_O_DIRECT)) {
611 log_err("fio: looks like your file system does not " \
612 "support direct=1/buffered=0\n");
613 }
614
e4e33258 615 td_verror(td, __e, buf);
3ce3ad33 616 return 1;
53cdc686
JA
617 }
618
29c1349f
JA
619 if (!from_hash && f->fd != -1) {
620 if (add_file_hash(f)) {
3f0ca9b9 621 int fio_unused ret;
29c1349f
JA
622
623 /*
e6c4d732
JA
624 * Stash away descriptor for later close. This is to
625 * work-around a "feature" on Linux, where a close of
626 * an fd that has been opened for write will trigger
627 * udev to call blkid to check partitions, fs id, etc.
de8f6de9 628 * That pollutes the device cache, which can slow down
e6c4d732 629 * unbuffered accesses.
29c1349f 630 */
e6c4d732
JA
631 if (f->shadow_fd == -1)
632 f->shadow_fd = f->fd;
633 else {
634 /*
635 * OK to ignore, we haven't done anything
636 * with it
637 */
638 ret = generic_close_file(td, f);
639 }
29c1349f
JA
640 goto open_again;
641 }
642 }
4906e0b5 643
53cdc686 644 return 0;
b5af8293
JA
645}
646
df9c26b1 647int generic_get_file_size(struct thread_data *td, struct fio_file *f)
21972cde 648{
df9c26b1 649 return get_file_size(td, f);
21972cde
JA
650}
651
7bb48f84
JA
652/*
653 * open/close all files, so that ->real_file_size gets set
654 */
bab3fd58 655static int get_file_sizes(struct thread_data *td)
7bb48f84
JA
656{
657 struct fio_file *f;
658 unsigned int i;
bab3fd58 659 int err = 0;
7bb48f84
JA
660
661 for_each_file(td, f, i) {
5ec10eaa
JA
662 dprint(FD_FILE, "get file size for %p/%d/%p\n", f, i,
663 f->file_name);
9efef3c4 664
99a47c69 665 if (td_io_get_file_size(td, f)) {
40b44f4a
JA
666 if (td->error != ENOENT) {
667 log_err("%s\n", td->verror);
668 err = 1;
3ce3ad33 669 break;
40b44f4a 670 }
541d66d7 671 clear_error(td);
07eb79df 672 }
409b3417
JA
673
674 if (f->real_file_size == -1ULL && td->o.size)
675 f->real_file_size = td->o.size / td->o.nr_files;
7bb48f84 676 }
bab3fd58
JA
677
678 return err;
7bb48f84
JA
679}
680
2e3bd4c2
JA
681struct fio_mount {
682 struct flist_head list;
683 const char *base;
684 char __base[256];
685 unsigned int key;
686};
687
688/*
689 * Get free number of bytes for each file on each unique mount.
690 */
691static unsigned long long get_fs_free_counts(struct thread_data *td)
692{
693 struct flist_head *n, *tmp;
68b0316f 694 unsigned long long ret = 0;
2e3bd4c2
JA
695 struct fio_mount *fm;
696 FLIST_HEAD(list);
697 struct fio_file *f;
698 unsigned int i;
699
700 for_each_file(td, f, i) {
701 struct stat sb;
702 char buf[256];
703
4ccdccd1
JA
704 if (f->filetype == FIO_TYPE_BD || f->filetype == FIO_TYPE_CHAR) {
705 if (f->real_file_size != -1ULL)
706 ret += f->real_file_size;
68b0316f
JA
707 continue;
708 } else if (f->filetype != FIO_TYPE_FILE)
709 continue;
710
da27a4bf
JA
711 buf[255] = '\0';
712 strncpy(buf, f->file_name, 255);
2e3bd4c2
JA
713
714 if (stat(buf, &sb) < 0) {
715 if (errno != ENOENT)
716 break;
717 strcpy(buf, ".");
718 if (stat(buf, &sb) < 0)
719 break;
720 }
721
722 fm = NULL;
723 flist_for_each(n, &list) {
724 fm = flist_entry(n, struct fio_mount, list);
725 if (fm->key == sb.st_dev)
726 break;
727
728 fm = NULL;
729 }
730
731 if (fm)
732 continue;
733
3660ceae
JA
734 fm = calloc(1, sizeof(*fm));
735 strncpy(fm->__base, buf, sizeof(fm->__base) - 1);
2e3bd4c2
JA
736 fm->base = basename(fm->__base);
737 fm->key = sb.st_dev;
738 flist_add(&fm->list, &list);
739 }
740
2e3bd4c2
JA
741 flist_for_each_safe(n, tmp, &list) {
742 unsigned long long sz;
743
744 fm = flist_entry(n, struct fio_mount, list);
745 flist_del(&fm->list);
746
c08ad04c 747 sz = get_fs_free_size(fm->base);
2e3bd4c2
JA
748 if (sz && sz != -1ULL)
749 ret += sz;
750
751 free(fm);
752 }
753
754 return ret;
755}
756
bedc9dc2 757uint64_t get_start_offset(struct thread_data *td, struct fio_file *f)
ce95d651 758{
bedc9dc2
JA
759 struct thread_options *o = &td->o;
760
761 if (o->file_append && f->filetype == FIO_TYPE_FILE)
762 return f->real_file_size;
763
ce95d651 764 return td->o.start_offset +
69bdd6ba 765 td->subjob_number * td->o.offset_increment;
ce95d651
DE
766}
767
7bb48f84
JA
768/*
769 * Open the files and setup files sizes, creating files if necessary.
770 */
53cdc686
JA
771int setup_files(struct thread_data *td)
772{
7bb48f84 773 unsigned long long total_size, extend_size;
de98bd30 774 struct thread_options *o = &td->o;
53cdc686 775 struct fio_file *f;
002fe734 776 unsigned int i, nr_fs_extra = 0;
000b0803 777 int err = 0, need_extend;
e90391eb 778 int old_state;
002fe734
JA
779 const unsigned int bs = td_min_bs(td);
780 uint64_t fs = 0;
53cdc686 781
ee56ad50
JA
782 dprint(FD_FILE, "setup files\n");
783
8edd973d 784 old_state = td_bump_runstate(td, TD_SETTING_UP);
e90391eb 785
de98bd30 786 if (o->read_iolog_file)
25460cf6 787 goto done;
691c8fb0 788
53cdc686
JA
789 /*
790 * if ioengine defines a setup() method, it's responsible for
7bb48f84
JA
791 * opening the files and setting f->real_file_size to indicate
792 * the valid range for that file.
53cdc686
JA
793 */
794 if (td->io_ops->setup)
7bb48f84
JA
795 err = td->io_ops->setup(td);
796 else
bab3fd58 797 err = get_file_sizes(td);
53cdc686 798
f1027063 799 if (err)
e90391eb 800 goto err_out;
f1027063 801
0a7eb121 802 /*
7bb48f84
JA
803 * check sizes. if the files/devices do not exist and the size
804 * isn't passed to fio, abort.
0a7eb121 805 */
7bb48f84
JA
806 total_size = 0;
807 for_each_file(td, f, i) {
808 if (f->real_file_size == -1ULL)
809 total_size = -1ULL;
810 else
811 total_size += f->real_file_size;
812 }
0a7eb121 813
de98bd30 814 if (o->fill_device)
2e3bd4c2
JA
815 td->fill_device_size = get_fs_free_counts(td);
816
7bb48f84
JA
817 /*
818 * device/file sizes are zero and no size given, punt
819 */
de98bd30
JA
820 if ((!total_size || total_size == -1ULL) && !o->size &&
821 !(td->io_ops->flags & FIO_NOIO) && !o->fill_device &&
822 !(o->nr_files && (o->file_size_low || o->file_size_high))) {
823 log_err("%s: you need to specify size=\n", o->name);
e1161c32 824 td_verror(td, EINVAL, "total_file_size");
e90391eb 825 goto err_out;
53cdc686
JA
826 }
827
002fe734
JA
828 /*
829 * Calculate per-file size and potential extra size for the
830 * first files, if needed.
831 */
d1e78e6b 832 if (!o->file_size_low && o->nr_files) {
002fe734
JA
833 uint64_t all_fs;
834
835 fs = o->size / o->nr_files;
836 all_fs = fs * o->nr_files;
837
838 if (all_fs < o->size)
839 nr_fs_extra = (o->size - all_fs) / bs;
840 }
841
7bb48f84
JA
842 /*
843 * now file sizes are known, so we can set ->io_size. if size= is
844 * not given, ->io_size is just equal to ->real_file_size. if size
845 * is given, ->io_size is size / nr_files.
846 */
847 extend_size = total_size = 0;
848 need_extend = 0;
849 for_each_file(td, f, i) {
bedc9dc2 850 f->file_offset = get_start_offset(td, f);
bcdedd0a 851
de98bd30 852 if (!o->file_size_low) {
7bb48f84
JA
853 /*
854 * no file size range given, file size is equal to
002fe734
JA
855 * total size divided by number of files. If that is
856 * zero, set it to the real file size. If the size
857 * doesn't divide nicely with the min blocksize,
858 * make the first files bigger.
7bb48f84 859 */
002fe734
JA
860 f->io_size = fs;
861 if (nr_fs_extra) {
862 nr_fs_extra--;
863 f->io_size += bs;
864 }
865
65bdb10a 866 if (!f->io_size)
273f8c91 867 f->io_size = f->real_file_size - f->file_offset;
de98bd30
JA
868 } else if (f->real_file_size < o->file_size_low ||
869 f->real_file_size > o->file_size_high) {
870 if (f->file_offset > o->file_size_low)
bcdedd0a 871 goto err_offset;
7bb48f84
JA
872 /*
873 * file size given. if it's fixed, use that. if it's a
874 * range, generate a random size in-between.
875 */
de98bd30
JA
876 if (o->file_size_low == o->file_size_high)
877 f->io_size = o->file_size_low - f->file_offset;
878 else {
5ec10eaa
JA
879 f->io_size = get_rand_file_size(td)
880 - f->file_offset;
881 }
65bdb10a 882 } else
bcdedd0a 883 f->io_size = f->real_file_size - f->file_offset;
53cdc686 884
7bb48f84
JA
885 if (f->io_size == -1ULL)
886 total_size = -1ULL;
4d002569 887 else {
de98bd30
JA
888 if (o->size_percent)
889 f->io_size = (f->io_size * o->size_percent) / 100;
7bb48f84 890 total_size += f->io_size;
4d002569 891 }
7bb48f84
JA
892
893 if (f->filetype == FIO_TYPE_FILE &&
bcdedd0a 894 (f->io_size + f->file_offset) > f->real_file_size &&
7bb48f84 895 !(td->io_ops->flags & FIO_DISKLESSIO)) {
de98bd30 896 if (!o->create_on_open) {
814452bd
JA
897 need_extend++;
898 extend_size += (f->io_size + f->file_offset);
899 } else
900 f->real_file_size = f->io_size + f->file_offset;
d6aed795 901 fio_file_set_extend(f);
5ec10eaa 902 }
7bb48f84 903 }
53cdc686 904
66347cfa
DE
905 if (td->o.block_error_hist) {
906 int len;
907
908 assert(td->o.nr_files == 1); /* checked in fixup_options */
909 f = td->files[0];
910 len = f->io_size / td->o.bs[DDIR_TRIM];
911 if (len > MAX_NR_BLOCK_INFOS || len <= 0) {
912 log_err("fio: cannot calculate block histogram with "
913 "%d trim blocks, maximum %d\n",
914 len, MAX_NR_BLOCK_INFOS);
915 td_verror(td, EINVAL, "block_error_hist");
916 goto err_out;
917 }
918
919 td->ts.nr_block_infos = len;
920 for (int i = 0; i < len; i++)
921 td->ts.block_infos[i] =
922 BLOCK_INFO(0, BLOCK_STATE_UNINIT);
923 } else
924 td->ts.nr_block_infos = 0;
925
0bc27b0b 926 if (!o->size || (total_size && o->size > total_size))
de98bd30 927 o->size = total_size;
21972cde 928
d1faa06d
JA
929 if (o->size < td_min_bs(td)) {
930 log_err("fio: blocksize too large for data set\n");
931 goto err_out;
932 }
933
7bb48f84
JA
934 /*
935 * See if we need to extend some files
936 */
937 if (need_extend) {
938 temp_stall_ts = 1;
129fb2d4 939 if (output_format & FIO_OUTPUT_NORMAL)
a7ba8c5f 940 log_info("%s: Laying out IO file(s) (%u file(s) /"
de98bd30 941 " %lluMB)\n", o->name, need_extend,
a7ba8c5f 942 extend_size >> 20);
7bb48f84
JA
943
944 for_each_file(td, f, i) {
5e0074c2 945 unsigned long long old_len = -1ULL, extend_len = -1ULL;
3baddf24 946
d6aed795 947 if (!fio_file_extend(f))
7bb48f84
JA
948 continue;
949
409b3417 950 assert(f->filetype == FIO_TYPE_FILE);
d6aed795 951 fio_file_clear_extend(f);
de98bd30 952 if (!o->fill_device) {
5e0074c2 953 old_len = f->real_file_size;
0b9d69ec
JA
954 extend_len = f->io_size + f->file_offset -
955 old_len;
5e0074c2 956 }
bcdedd0a 957 f->real_file_size = (f->io_size + f->file_offset);
7bb48f84
JA
958 err = extend_file(td, f);
959 if (err)
3baddf24 960 break;
5e0074c2 961
3baddf24
JA
962 err = __file_invalidate_cache(td, f, old_len,
963 extend_len);
9824f73b
JA
964
965 /*
966 * Shut up static checker
967 */
968 if (f->fd != -1)
969 close(f->fd);
970
3baddf24
JA
971 f->fd = -1;
972 if (err)
7bb48f84
JA
973 break;
974 }
975 temp_stall_ts = 0;
976 }
977
978 if (err)
e90391eb 979 goto err_out;
7bb48f84 980
de98bd30
JA
981 if (!o->zone_size)
982 o->zone_size = o->size;
7bb48f84 983
ea966f81
JA
984 /*
985 * iolog already set the total io size, if we read back
986 * stored entries.
987 */
77731b29
JA
988 if (!o->read_iolog_file) {
989 if (o->io_limit)
990 td->total_io_size = o->io_limit * o->loops;
991 else
992 td->total_io_size = o->size * o->loops;
993 }
25460cf6
JA
994
995done:
de98bd30 996 if (o->create_only)
25460cf6
JA
997 td->done = 1;
998
8edd973d 999 td_restore_runstate(td, old_state);
7bb48f84 1000 return 0;
bcdedd0a 1001err_offset:
de98bd30 1002 log_err("%s: you need to specify valid offset=\n", o->name);
e90391eb 1003err_out:
8edd973d 1004 td_restore_runstate(td, old_state);
bcdedd0a 1005 return 1;
53cdc686
JA
1006}
1007
afad68f7
ZY
1008int pre_read_files(struct thread_data *td)
1009{
1010 struct fio_file *f;
1011 unsigned int i;
1012
1013 dprint(FD_FILE, "pre_read files\n");
1014
1015 for_each_file(td, f, i) {
1016 pre_read_file(td, f);
1017 }
1018
1019 return 1;
1020}
1021
9c6f6316
JA
1022static int __init_rand_distribution(struct thread_data *td, struct fio_file *f)
1023{
2316296a 1024 unsigned int range_size, seed;
9c6f6316 1025 unsigned long nranges;
42da5c8b 1026 uint64_t fsize;
9c6f6316
JA
1027
1028 range_size = min(td->o.min_bs[DDIR_READ], td->o.min_bs[DDIR_WRITE]);
42da5c8b 1029 fsize = min(f->real_file_size, f->io_size);
9c6f6316 1030
42da5c8b 1031 nranges = (fsize + range_size - 1) / range_size;
9c6f6316 1032
2316296a 1033 seed = jhash(f->file_name, strlen(f->file_name), 0) * td->thread_number;
8425687e
JA
1034 if (!td->o.rand_repeatable)
1035 seed = td->rand_seeds[4];
1036
9c6f6316 1037 if (td->o.random_distribution == FIO_RAND_DIST_ZIPF)
888677a4 1038 zipf_init(&f->zipf, nranges, td->o.zipf_theta.u.f, seed);
56d9fa4b 1039 else if (td->o.random_distribution == FIO_RAND_DIST_PARETO)
888677a4 1040 pareto_init(&f->zipf, nranges, td->o.pareto_h.u.f, seed);
56d9fa4b 1041 else if (td->o.random_distribution == FIO_RAND_DIST_GAUSS)
f88cd222 1042 gauss_init(&f->gauss, nranges, td->o.gauss_dev.u.f, seed);
9c6f6316
JA
1043
1044 return 1;
1045}
1046
1047static int init_rand_distribution(struct thread_data *td)
1048{
1049 struct fio_file *f;
1050 unsigned int i;
1051 int state;
1052
1053 if (td->o.random_distribution == FIO_RAND_DIST_RANDOM)
1054 return 0;
1055
8edd973d
JA
1056 state = td_bump_runstate(td, TD_SETTING_UP);
1057
9c6f6316
JA
1058 for_each_file(td, f, i)
1059 __init_rand_distribution(td, f);
8edd973d
JA
1060
1061 td_restore_runstate(td, state);
9c6f6316
JA
1062
1063 return 1;
1064}
1065
75f90d5f
JA
1066/*
1067 * Check if the number of blocks exceeds the randomness capability of
1068 * the selected generator. Tausworthe is 32-bit, the others are fullly
1069 * 64-bit capable.
1070 */
1071static int check_rand_gen_limits(struct thread_data *td, struct fio_file *f,
1072 uint64_t blocks)
1073{
1074 if (blocks <= FRAND32_MAX)
1075 return 0;
1076 if (td->o.random_generator != FIO_RAND_GEN_TAUSWORTHE)
1077 return 0;
1078
1079 /*
1080 * If the user hasn't specified a random generator, switch
1081 * to tausworthe64 with informational warning. If the user did
1082 * specify one, just warn.
1083 */
1084 log_info("fio: file %s exceeds 32-bit tausworthe random generator.\n",
1085 f->file_name);
1086
1087 if (!fio_option_is_set(&td->o, random_generator)) {
1088 log_info("fio: Switching to tausworthe64. Use the "
1089 "random_generator= option to get rid of this "
1090 " warning.\n");
1091 td->o.random_generator = FIO_RAND_GEN_TAUSWORTHE64;
1092 return 0;
1093 }
1094
1095 /*
1096 * Just make this information to avoid breaking scripts.
1097 */
1098 log_info("fio: Use the random_generator= option to switch to lfsr or "
1099 "tausworthe64.\n");
1100 return 0;
1101}
1102
68727076
JA
1103int init_random_map(struct thread_data *td)
1104{
51ede0b1 1105 unsigned long long blocks;
68727076
JA
1106 struct fio_file *f;
1107 unsigned int i;
1108
9c6f6316
JA
1109 if (init_rand_distribution(td))
1110 return 0;
3831a843 1111 if (!td_random(td))
68727076
JA
1112 return 0;
1113
1114 for_each_file(td, f, i) {
42da5c8b 1115 uint64_t fsize = min(f->real_file_size, f->io_size);
38f30c81 1116
42da5c8b 1117 blocks = fsize / (unsigned long long) td->o.rw_min_bs;
53737ae0 1118
75f90d5f 1119 if (check_rand_gen_limits(td, f, blocks))
37fbd7e9 1120 return 1;
37fbd7e9 1121
8055e41d 1122 if (td->o.random_generator == FIO_RAND_GEN_LFSR) {
82af46be
JA
1123 unsigned long seed;
1124
1125 seed = td->rand_seeds[FIO_RAND_BLOCK_OFF];
9c0f3f32 1126
967d1b63
JA
1127 if (!lfsr_init(&f->lfsr, blocks, seed, 0)) {
1128 fio_file_set_lfsr(f);
8055e41d 1129 continue;
967d1b63 1130 }
3831a843 1131 } else if (!td->o.norandommap) {
7ebd796f 1132 f->io_axmap = axmap_new(blocks);
967d1b63
JA
1133 if (f->io_axmap) {
1134 fio_file_set_axmap(f);
8055e41d 1135 continue;
967d1b63 1136 }
1cad7121
JA
1137 } else if (td->o.norandommap)
1138 continue;
ceadd59e 1139
2b386d25 1140 if (!td->o.softrandommap) {
5ec10eaa
JA
1141 log_err("fio: failed allocating random map. If running"
1142 " a large number of jobs, try the 'norandommap'"
2b386d25
JA
1143 " option or set 'softrandommap'. Or give"
1144 " a larger --alloc-size to fio.\n");
68727076
JA
1145 return 1;
1146 }
303032ae
JA
1147
1148 log_info("fio: file %s failed allocating random map. Running "
1149 "job without.\n", f->file_name);
68727076
JA
1150 }
1151
1152 return 0;
1153}
1154
53cdc686
JA
1155void close_files(struct thread_data *td)
1156{
0ab8db89 1157 struct fio_file *f;
af52b345 1158 unsigned int i;
53cdc686 1159
2be3eec3
JA
1160 for_each_file(td, f, i) {
1161 if (fio_file_open(f))
1162 td_io_close_file(td, f);
1163 }
24ffd2c2
JA
1164}
1165
1166void close_and_free_files(struct thread_data *td)
1167{
1168 struct fio_file *f;
1169 unsigned int i;
1170
ee56ad50
JA
1171 dprint(FD_FILE, "close files\n");
1172
0ab8db89 1173 for_each_file(td, f, i) {
38ef9c90
CF
1174 if (td->o.unlink && f->filetype == FIO_TYPE_FILE) {
1175 dprint(FD_FILE, "free unlink %s\n", f->file_name);
1176 td_io_unlink_file(td, f);
1177 }
1178
22a57ba8
JA
1179 if (fio_file_open(f))
1180 td_io_close_file(td, f);
1181
b9fbcf21 1182 remove_file_hash(f);
b3dc7f07 1183
b5f4d8ba
JA
1184 if (td->o.unlink && f->filetype == FIO_TYPE_FILE) {
1185 dprint(FD_FILE, "free unlink %s\n", f->file_name);
38ef9c90 1186 td_io_unlink_file(td, f);
b5f4d8ba
JA
1187 }
1188
f17c4392 1189 sfree(f->file_name);
fa1da865 1190 f->file_name = NULL;
967d1b63
JA
1191 if (fio_file_axmap(f)) {
1192 axmap_free(f->io_axmap);
1193 f->io_axmap = NULL;
1194 }
78d99e6a 1195 sfree(f);
53cdc686 1196 }
b4a6a59a 1197
2dc1bbeb 1198 td->o.filename = NULL;
cade3ef4 1199 free(td->files);
d7df1d13 1200 free(td->file_locks);
9efef3c4 1201 td->files_index = 0;
b4a6a59a 1202 td->files = NULL;
d7df1d13 1203 td->file_locks = NULL;
27ddbfa0 1204 td->o.file_lock_mode = FILE_LOCK_NONE;
2dc1bbeb 1205 td->o.nr_files = 0;
53cdc686 1206}
af52b345 1207
e3bab463 1208static void get_file_type(struct fio_file *f)
af52b345
JA
1209{
1210 struct stat sb;
1211
66159828
JA
1212 if (!strcmp(f->file_name, "-"))
1213 f->filetype = FIO_TYPE_PIPE;
1214 else
1215 f->filetype = FIO_TYPE_FILE;
af52b345 1216
3892182a
BC
1217 /* \\.\ is the device namespace in Windows, where every file is
1218 * a block device */
1219 if (strncmp(f->file_name, "\\\\.\\", 4) == 0)
1220 f->filetype = FIO_TYPE_BD;
1221
b30d395e 1222 if (!stat(f->file_name, &sb)) {
3892182a 1223 if (S_ISBLK(sb.st_mode))
af52b345
JA
1224 f->filetype = FIO_TYPE_BD;
1225 else if (S_ISCHR(sb.st_mode))
1226 f->filetype = FIO_TYPE_CHAR;
b5605e9d
JA
1227 else if (S_ISFIFO(sb.st_mode))
1228 f->filetype = FIO_TYPE_PIPE;
af52b345
JA
1229 }
1230}
1231
90426237 1232static int __is_already_allocated(const char *fname)
190b8f0c 1233{
90426237
JA
1234 struct flist_head *entry;
1235 char *filename;
bcbfeefa 1236
90426237
JA
1237 if (flist_empty(&filename_list))
1238 return 0;
1239
1240 flist_for_each(entry, &filename_list) {
1241 filename = flist_entry(entry, struct file_name, list)->filename;
1242
1243 if (strcmp(filename, fname) == 0)
1244 return 1;
1245 }
1246
1247 return 0;
bcbfeefa
CE
1248}
1249
1250static int is_already_allocated(const char *fname)
1251{
90426237 1252 int ret;
bcbfeefa 1253
90426237
JA
1254 fio_file_hash_lock();
1255 ret = __is_already_allocated(fname);
1256 fio_file_hash_unlock();
1257 return ret;
1258}
bcbfeefa 1259
90426237
JA
1260static void set_already_allocated(const char *fname)
1261{
1262 struct file_name *fn;
1263
1264 fn = malloc(sizeof(struct file_name));
1265 fn->filename = strdup(fname);
1266
1267 fio_file_hash_lock();
1268 if (!__is_already_allocated(fname)) {
1269 flist_add_tail(&fn->list, &filename_list);
1270 fn = NULL;
bcbfeefa 1271 }
90426237 1272 fio_file_hash_unlock();
bcbfeefa 1273
90426237
JA
1274 if (fn) {
1275 free(fn->filename);
1276 free(fn);
1277 }
bcbfeefa
CE
1278}
1279
90426237 1280
190b8f0c
CF
1281static void free_already_allocated(void)
1282{
bcbfeefa
CE
1283 struct flist_head *entry, *tmp;
1284 struct file_name *fn;
1285
90426237
JA
1286 if (flist_empty(&filename_list))
1287 return;
1288
1289 fio_file_hash_lock();
1290 flist_for_each_safe(entry, tmp, &filename_list) {
1291 fn = flist_entry(entry, struct file_name, list);
1292 free(fn->filename);
1293 flist_del(&fn->list);
1294 free(fn);
bcbfeefa 1295 }
90426237
JA
1296
1297 fio_file_hash_unlock();
bcbfeefa
CE
1298}
1299
7b5cb700
JA
1300static struct fio_file *alloc_new_file(struct thread_data *td)
1301{
1302 struct fio_file *f;
1303
1304 f = smalloc(sizeof(*f));
1305 if (!f) {
1306 log_err("fio: smalloc OOM\n");
1307 assert(0);
1308 return NULL;
1309 }
1310
1311 f->fd = -1;
1312 f->shadow_fd = -1;
1313 fio_file_reset(td, f);
1314 return f;
1315}
1316
5903e7b7 1317int add_file(struct thread_data *td, const char *fname, int numjob, int inc)
af52b345 1318{
7b4e4fe5 1319 int cur_files = td->files_index;
bd0ee748 1320 char file_name[PATH_MAX];
af52b345 1321 struct fio_file *f;
bd0ee748 1322 int len = 0;
af52b345 1323
ee56ad50
JA
1324 dprint(FD_FILE, "add file %s\n", fname);
1325
bcbfeefa 1326 if (td->o.directory)
e13c3b50 1327 len = set_name_idx(file_name, PATH_MAX, td->o.directory, numjob);
bcbfeefa
CE
1328
1329 sprintf(file_name + len, "%s", fname);
1330
1331 /* clean cloned siblings using existing files */
1332 if (numjob && is_already_allocated(file_name))
1333 return 0;
1334
7b5cb700 1335 f = alloc_new_file(td);
bd0ee748 1336
fc99bc0d 1337 if (td->files_size <= td->files_index) {
1983e327 1338 unsigned int new_size = td->o.nr_files + 1;
126d65c6 1339
fc99bc0d
JA
1340 dprint(FD_FILE, "resize file array to %d files\n", new_size);
1341
1342 td->files = realloc(td->files, new_size * sizeof(f));
d537c08b
JM
1343 if (td->files == NULL) {
1344 log_err("fio: realloc OOM\n");
1345 assert(0);
1346 }
d7df1d13
JA
1347 if (td->o.file_lock_mode != FILE_LOCK_NONE) {
1348 td->file_locks = realloc(td->file_locks, new_size);
1349 if (!td->file_locks) {
1350 log_err("fio: realloc OOM\n");
1351 assert(0);
1352 }
1353 td->file_locks[cur_files] = FILE_LOCK_NONE;
1354 }
fc99bc0d
JA
1355 td->files_size = new_size;
1356 }
8bb7679e 1357 td->files[cur_files] = f;
89ac1d48 1358 f->fileno = cur_files;
126d65c6 1359
07eb79df
JA
1360 /*
1361 * init function, io engine may not be loaded yet
1362 */
1363 if (td->io_ops && (td->io_ops->flags & FIO_DISKLESSIO))
1364 f->real_file_size = -1ULL;
1365
f17c4392 1366 f->file_name = smalloc_strdup(file_name);
c48c0be7
JA
1367 if (!f->file_name) {
1368 log_err("fio: smalloc OOM\n");
1369 assert(0);
1370 }
0b9d69ec 1371
e3bab463 1372 get_file_type(f);
af52b345 1373
4d4e80f2
JA
1374 switch (td->o.file_lock_mode) {
1375 case FILE_LOCK_NONE:
1376 break;
1377 case FILE_LOCK_READWRITE:
d7df1d13 1378 f->rwlock = fio_rwlock_init();
4d4e80f2
JA
1379 break;
1380 case FILE_LOCK_EXCLUSIVE:
521da527 1381 f->lock = fio_mutex_init(FIO_MUTEX_UNLOCKED);
4d4e80f2
JA
1382 break;
1383 default:
1384 log_err("fio: unknown lock mode: %d\n", td->o.file_lock_mode);
1385 assert(0);
1386 }
29c1349f 1387
7b4e4fe5 1388 td->files_index++;
1549441c
JA
1389 if (f->filetype == FIO_TYPE_FILE)
1390 td->nr_normal_files++;
f29b25a3 1391
bcbfeefa
CE
1392 set_already_allocated(file_name);
1393
5903e7b7
JA
1394 if (inc)
1395 td->o.nr_files++;
1396
5ec10eaa
JA
1397 dprint(FD_FILE, "file %p \"%s\" added at %d\n", f, f->file_name,
1398 cur_files);
9efef3c4 1399
f29b25a3 1400 return cur_files;
af52b345 1401}
0ad920e7 1402
49ffb4a2
JA
1403int add_file_exclusive(struct thread_data *td, const char *fname)
1404{
1405 struct fio_file *f;
1406 unsigned int i;
1407
1408 for_each_file(td, f, i) {
1409 if (!strcmp(f->file_name, fname))
1410 return i;
1411 }
1412
5903e7b7 1413 return add_file(td, fname, 0, 1);
49ffb4a2
JA
1414}
1415
0ad920e7
JA
1416void get_file(struct fio_file *f)
1417{
8172fe97 1418 dprint(FD_FILE, "get file %s, ref=%d\n", f->file_name, f->references);
d6aed795 1419 assert(fio_file_open(f));
0ad920e7
JA
1420 f->references++;
1421}
1422
6977bcd0 1423int put_file(struct thread_data *td, struct fio_file *f)
0ad920e7 1424{
98e1ac4e 1425 int f_ret = 0, ret = 0;
6977bcd0 1426
8172fe97 1427 dprint(FD_FILE, "put file %s, ref=%d\n", f->file_name, f->references);
ee56ad50 1428
22a57ba8
JA
1429 if (!fio_file_open(f)) {
1430 assert(f->fd == -1);
6977bcd0 1431 return 0;
22a57ba8 1432 }
0ad920e7
JA
1433
1434 assert(f->references);
1435 if (--f->references)
6977bcd0 1436 return 0;
0ad920e7 1437
71b84caa 1438 if (should_fsync(td) && td->o.fsync_on_close) {
98e1ac4e 1439 f_ret = fsync(f->fd);
71b84caa
JA
1440 if (f_ret < 0)
1441 f_ret = errno;
1442 }
ebb1415f 1443
0ad920e7 1444 if (td->io_ops->close_file)
6977bcd0 1445 ret = td->io_ops->close_file(td, f);
1020a139 1446
98e1ac4e 1447 if (!ret)
a5fb461f 1448 ret = f_ret;
98e1ac4e 1449
0ad920e7 1450 td->nr_open_files--;
d6aed795 1451 fio_file_clear_open(f);
22a57ba8 1452 assert(f->fd == -1);
6977bcd0 1453 return ret;
0ad920e7 1454}
bbf6b540 1455
4d4e80f2 1456void lock_file(struct thread_data *td, struct fio_file *f, enum fio_ddir ddir)
b2bd2bd9 1457{
4d4e80f2
JA
1458 if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE)
1459 return;
29c1349f 1460
4d4e80f2
JA
1461 if (td->o.file_lock_mode == FILE_LOCK_READWRITE) {
1462 if (ddir == DDIR_READ)
d7df1d13 1463 fio_rwlock_read(f->rwlock);
4d4e80f2 1464 else
d7df1d13 1465 fio_rwlock_write(f->rwlock);
4d4e80f2
JA
1466 } else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE)
1467 fio_mutex_down(f->lock);
1468
d7df1d13 1469 td->file_locks[f->fileno] = td->o.file_lock_mode;
b2bd2bd9
JA
1470}
1471
4d4e80f2 1472void unlock_file(struct thread_data *td, struct fio_file *f)
b2bd2bd9 1473{
4d4e80f2
JA
1474 if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE)
1475 return;
4d4e80f2 1476
d7df1d13
JA
1477 if (td->o.file_lock_mode == FILE_LOCK_READWRITE)
1478 fio_rwlock_unlock(f->rwlock);
1479 else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE)
4d4e80f2 1480 fio_mutex_up(f->lock);
d7df1d13
JA
1481
1482 td->file_locks[f->fileno] = FILE_LOCK_NONE;
b2bd2bd9
JA
1483}
1484
4d4e80f2
JA
1485void unlock_file_all(struct thread_data *td, struct fio_file *f)
1486{
f2a2803a 1487 if (td->o.file_lock_mode == FILE_LOCK_NONE || !td->file_locks)
27ddbfa0 1488 return;
d7df1d13
JA
1489 if (td->file_locks[f->fileno] != FILE_LOCK_NONE)
1490 unlock_file(td, f);
4d4e80f2
JA
1491}
1492
bbf6b540
JA
1493static int recurse_dir(struct thread_data *td, const char *dirname)
1494{
1495 struct dirent *dir;
1496 int ret = 0;
1497 DIR *D;
1498
1499 D = opendir(dirname);
1500 if (!D) {
0ddb270c
JA
1501 char buf[FIO_VERROR_SIZE];
1502
98ffb8f3 1503 snprintf(buf, FIO_VERROR_SIZE, "opendir(%s)", dirname);
0ddb270c 1504 td_verror(td, errno, buf);
bbf6b540
JA
1505 return 1;
1506 }
1507
1508 while ((dir = readdir(D)) != NULL) {
1509 char full_path[PATH_MAX];
1510 struct stat sb;
1511
e85b2b83
JA
1512 if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, ".."))
1513 continue;
96d32d51 1514
b9fd788f 1515 sprintf(full_path, "%s%s%s", dirname, FIO_OS_PATH_SEPARATOR, dir->d_name);
bbf6b540
JA
1516
1517 if (lstat(full_path, &sb) == -1) {
1518 if (errno != ENOENT) {
1519 td_verror(td, errno, "stat");
68ace9e0
JA
1520 ret = 1;
1521 break;
bbf6b540
JA
1522 }
1523 }
1524
1525 if (S_ISREG(sb.st_mode)) {
5903e7b7 1526 add_file(td, full_path, 0, 1);
bbf6b540
JA
1527 continue;
1528 }
0ddb270c
JA
1529 if (!S_ISDIR(sb.st_mode))
1530 continue;
bbf6b540 1531
5ec10eaa
JA
1532 ret = recurse_dir(td, full_path);
1533 if (ret)
bbf6b540
JA
1534 break;
1535 }
1536
1537 closedir(D);
1538 return ret;
1539}
1540
1541int add_dir_files(struct thread_data *td, const char *path)
1542{
0ddb270c
JA
1543 int ret = recurse_dir(td, path);
1544
1545 if (!ret)
1546 log_info("fio: opendir added %d files\n", td->o.nr_files);
1547
1548 return ret;
bbf6b540 1549}
cade3ef4
JA
1550
1551void dup_files(struct thread_data *td, struct thread_data *org)
1552{
1553 struct fio_file *f;
1554 unsigned int i;
9efef3c4
JA
1555
1556 dprint(FD_FILE, "dup files: %d\n", org->files_index);
cade3ef4
JA
1557
1558 if (!org->files)
1559 return;
1560
9efef3c4 1561 td->files = malloc(org->files_index * sizeof(f));
cade3ef4 1562
d7df1d13
JA
1563 if (td->o.file_lock_mode != FILE_LOCK_NONE)
1564 td->file_locks = malloc(org->files_index);
1565
9efef3c4 1566 for_each_file(org, f, i) {
b0fe421a
JA
1567 struct fio_file *__f;
1568
7b5cb700 1569 __f = alloc_new_file(td);
0b9d69ec 1570
bc3456fa 1571 if (f->file_name) {
f17c4392 1572 __f->file_name = smalloc_strdup(f->file_name);
c48c0be7
JA
1573 if (!__f->file_name) {
1574 log_err("fio: smalloc OOM\n");
1575 assert(0);
1576 }
0b9d69ec 1577
bc3456fa
AC
1578 __f->filetype = f->filetype;
1579 }
b0fe421a 1580
67ad9242
JA
1581 if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE)
1582 __f->lock = f->lock;
1583 else if (td->o.file_lock_mode == FILE_LOCK_READWRITE)
1584 __f->rwlock = f->rwlock;
1585
b0fe421a 1586 td->files[i] = __f;
cade3ef4
JA
1587 }
1588}
f29b25a3
JA
1589
1590/*
1591 * Returns the index that matches the filename, or -1 if not there
1592 */
1593int get_fileno(struct thread_data *td, const char *fname)
1594{
1595 struct fio_file *f;
1596 unsigned int i;
1597
1598 for_each_file(td, f, i)
1599 if (!strcmp(f->file_name, fname))
1600 return i;
1601
1602 return -1;
1603}
1604
1605/*
1606 * For log usage, where we add/open/close files automatically
1607 */
1608void free_release_files(struct thread_data *td)
1609{
1610 close_files(td);
66ee4002
JA
1611 td->o.nr_files = 0;
1612 td->o.open_files = 0;
f29b25a3
JA
1613 td->files_index = 0;
1614 td->nr_normal_files = 0;
1615}
33c48814
JA
1616
1617void fio_file_reset(struct thread_data *td, struct fio_file *f)
1618{
f1dfb668
JA
1619 int i;
1620
1621 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1622 f->last_pos[i] = f->file_offset;
1623 f->last_start[i] = -1ULL;
1624 }
1625
967d1b63 1626 if (fio_file_axmap(f))
33c48814 1627 axmap_reset(f->io_axmap);
967d1b63 1628 else if (fio_file_lfsr(f))
33c48814
JA
1629 lfsr_reset(&f->lfsr, td->rand_seeds[FIO_RAND_BLOCK_OFF]);
1630}
002fe734
JA
1631
1632int fio_files_done(struct thread_data *td)
1633{
1634 struct fio_file *f;
1635 unsigned int i;
1636
1637 for_each_file(td, f, i)
1638 if (!fio_file_done(f))
1639 return 0;
1640
1641 return 1;
1642}
bcbfeefa
CE
1643
1644/* free memory used in initialization phase only */
190b8f0c
CF
1645void filesetup_mem_free(void)
1646{
bcbfeefa
CE
1647 free_already_allocated();
1648}