Prevent filetype disappearing
[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
7bb48f84
JA
139 if (fstat(f->fd, &st) == -1) {
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
153 r = blockdev_size(f->fd, &bytes);
154 if (r) {
e1161c32 155 td_verror(td, r, "blockdev_size");
53cdc686
JA
156 return 1;
157 }
158
159 f->real_file_size = bytes;
53cdc686
JA
160 return 0;
161}
162
163static int get_file_size(struct thread_data *td, struct fio_file *f)
164{
165 int ret = 0;
166
409b3417
JA
167 if (f->flags & FIO_SIZE_KNOWN)
168 return 0;
169
7bb48f84
JA
170 if (f->filetype == FIO_TYPE_FILE)
171 ret = file_size(td, f);
172 else if (f->filetype == FIO_TYPE_BD)
53cdc686
JA
173 ret = bdev_size(td, f);
174 else
175 f->real_file_size = -1;
176
177 if (ret)
178 return ret;
179
180 if (f->file_offset > f->real_file_size) {
5ec10eaa
JA
181 log_err("%s: offset extends end (%Lu > %Lu)\n", td->o.name,
182 f->file_offset, f->real_file_size);
53cdc686
JA
183 return 1;
184 }
185
409b3417 186 f->flags |= FIO_SIZE_KNOWN;
53cdc686
JA
187 return 0;
188}
189
3baddf24
JA
190static int __file_invalidate_cache(struct thread_data *td, struct fio_file *f,
191 unsigned long long off,
192 unsigned long long len)
e5b401d4
JA
193{
194 int ret = 0;
195
3baddf24
JA
196 if (len == -1ULL)
197 len = f->io_size;
198 if (off == -1ULL)
199 off = f->file_offset;
ee56ad50 200
3baddf24
JA
201 dprint(FD_IO, "invalidate cache %s: %llu/%llu\n", f->file_name, off,
202 len);
b5af8293 203
e5b401d4
JA
204 /*
205 * FIXME: add blockdev flushing too
206 */
b5af8293 207 if (f->mmap)
3baddf24 208 ret = madvise(f->mmap, len, MADV_DONTNEED);
5ec10eaa 209 else if (f->filetype == FIO_TYPE_FILE) {
3baddf24 210 ret = fadvise(f->fd, off, len, POSIX_FADV_DONTNEED);
5ec10eaa 211 } else if (f->filetype == FIO_TYPE_BD) {
b5af8293 212 ret = blockdev_invalidate_cache(f->fd);
7e0e25c9 213 if (ret < 0 && errno == EACCES && geteuid()) {
7172cfe8 214 if (!root_warn) {
5ec10eaa
JA
215 log_err("fio: only root may flush block "
216 "devices. Cache flush bypassed!\n");
7172cfe8
JA
217 root_warn = 1;
218 }
7e0e25c9
JA
219 ret = 0;
220 }
b5605e9d 221 } else if (f->filetype == FIO_TYPE_CHAR || f->filetype == FIO_TYPE_PIPE)
e5b401d4
JA
222 ret = 0;
223
224 if (ret < 0) {
e1161c32 225 td_verror(td, errno, "invalidate_cache");
e5b401d4 226 return 1;
3baddf24
JA
227 } else if (ret > 0) {
228 td_verror(td, ret, "invalidate_cache");
229 return 1;
e5b401d4
JA
230 }
231
ad2da605 232 return ret;
3baddf24
JA
233
234}
235
236int file_invalidate_cache(struct thread_data *td, struct fio_file *f)
237{
a5fb461f
JA
238 if (!(f->flags & FIO_FILE_OPEN))
239 return 0;
240
3baddf24 241 return __file_invalidate_cache(td, f, -1, -1);
e5b401d4
JA
242}
243
6977bcd0 244int generic_close_file(struct thread_data fio_unused *td, struct fio_file *f)
53cdc686 245{
6977bcd0
JA
246 int ret = 0;
247
ee56ad50 248 dprint(FD_FILE, "fd close %s\n", f->file_name);
4906e0b5
JA
249
250 remove_file_hash(f);
251
6977bcd0
JA
252 if (close(f->fd) < 0)
253 ret = errno;
254
b5af8293 255 f->fd = -1;
6977bcd0 256 return ret;
53cdc686
JA
257}
258
4d4e80f2 259static int file_lookup_open(struct fio_file *f, int flags)
53cdc686 260{
29c1349f 261 struct fio_file *__f;
4d4e80f2
JA
262 int from_hash;
263
264 __f = lookup_file_hash(f->file_name);
265 if (__f) {
9efef3c4 266 dprint(FD_FILE, "found file in hash %s\n", f->file_name);
4d4e80f2
JA
267 /*
268 * racy, need the __f->lock locked
269 */
270 f->lock = __f->lock;
271 f->lock_owner = __f->lock_owner;
272 f->lock_batch = __f->lock_batch;
273 f->lock_ddir = __f->lock_ddir;
4d4e80f2
JA
274 from_hash = 1;
275 } else {
9efef3c4 276 dprint(FD_FILE, "file not found in hash %s\n", f->file_name);
4d4e80f2
JA
277 from_hash = 0;
278 }
279
e8670ef8 280 f->fd = open(f->file_name, flags, 0600);
4d4e80f2
JA
281 return from_hash;
282}
283
284int generic_open_file(struct thread_data *td, struct fio_file *f)
285{
66159828 286 int is_std = 0;
53cdc686 287 int flags = 0;
29c1349f 288 int from_hash = 0;
53cdc686 289
ee56ad50
JA
290 dprint(FD_FILE, "fd open %s\n", f->file_name);
291
66159828
JA
292 if (!strcmp(f->file_name, "-")) {
293 if (td_rw(td)) {
294 log_err("fio: can't read/write to stdin/out\n");
295 return 1;
296 }
297 is_std = 1;
ce98fa66
JA
298
299 /*
300 * move output logging to stderr, if we are writing to stdout
301 */
302 if (td_write(td))
303 f_out = stderr;
66159828
JA
304 }
305
2dc1bbeb 306 if (td->o.odirect)
2fd233b7 307 flags |= OS_O_DIRECT;
2dc1bbeb 308 if (td->o.sync_io)
2fd233b7 309 flags |= O_SYNC;
ad92396c 310 if (f->filetype != FIO_TYPE_FILE)
5921e80c 311 flags |= FIO_O_NOATIME;
53cdc686 312
056f3459 313open_again:
660a1cb5 314 if (td_write(td)) {
17308158
JA
315 if (!read_only)
316 flags |= O_RDWR;
53cdc686 317
af52b345 318 if (f->filetype == FIO_TYPE_FILE)
2fd233b7 319 flags |= O_CREAT;
2fd233b7 320
66159828
JA
321 if (is_std)
322 f->fd = dup(STDOUT_FILENO);
4d4e80f2
JA
323 else
324 from_hash = file_lookup_open(f, flags);
2fd233b7 325 } else {
4241ea8f 326 if (f->filetype == FIO_TYPE_CHAR && !read_only)
2fd233b7
JA
327 flags |= O_RDWR;
328 else
329 flags |= O_RDONLY;
330
66159828
JA
331 if (is_std)
332 f->fd = dup(STDIN_FILENO);
4d4e80f2
JA
333 else
334 from_hash = file_lookup_open(f, flags);
53cdc686
JA
335 }
336
337 if (f->fd == -1) {
e4e33258 338 char buf[FIO_VERROR_SIZE];
e1161c32
JA
339 int __e = errno;
340
5921e80c
JA
341 if (errno == EPERM && (flags & FIO_O_NOATIME)) {
342 flags &= ~FIO_O_NOATIME;
056f3459
AC
343 goto open_again;
344 }
345
e8670ef8 346 snprintf(buf, sizeof(buf) - 1, "open(%s)", f->file_name);
e4e33258
JA
347
348 td_verror(td, __e, buf);
53cdc686
JA
349 }
350
b5af8293
JA
351 if (get_file_size(td, f))
352 goto err;
353
29c1349f
JA
354 if (!from_hash && f->fd != -1) {
355 if (add_file_hash(f)) {
356 int ret;
357
358 /*
359 * OK to ignore, we haven't done anything with it
360 */
361 ret = generic_close_file(td, f);
362 goto open_again;
363 }
364 }
4906e0b5 365
53cdc686 366 return 0;
b5af8293
JA
367err:
368 close(f->fd);
369 return 1;
370}
371
21972cde
JA
372int open_files(struct thread_data *td)
373{
374 struct fio_file *f;
af52b345
JA
375 unsigned int i;
376 int err = 0;
21972cde 377
ee56ad50
JA
378 dprint(FD_FILE, "open files\n");
379
21972cde 380 for_each_file(td, f, i) {
b5af8293 381 err = td_io_open_file(td, f);
9bf27b45
JA
382 if (err) {
383 if (td->error == EMFILE) {
5ec10eaa
JA
384 log_err("fio: limited open files to: %d\n",
385 td->nr_open_files);
9bf27b45
JA
386 td->o.open_files = td->nr_open_files;
387 err = 0;
388 clear_error(td);
389 }
21972cde 390 break;
9bf27b45 391 }
b5af8293 392
2dc1bbeb 393 if (td->o.open_files == td->nr_open_files)
b5af8293 394 break;
21972cde
JA
395 }
396
7abf833d
JA
397 if (!err)
398 return 0;
399
bdb4e2e9 400 for_each_file(td, f, i)
b5af8293 401 td_io_close_file(td, f);
7abf833d 402
21972cde
JA
403 return err;
404}
405
7bb48f84
JA
406/*
407 * open/close all files, so that ->real_file_size gets set
408 */
bab3fd58 409static int get_file_sizes(struct thread_data *td)
7bb48f84
JA
410{
411 struct fio_file *f;
412 unsigned int i;
bab3fd58 413 int err = 0;
7bb48f84
JA
414
415 for_each_file(td, f, i) {
5ec10eaa
JA
416 dprint(FD_FILE, "get file size for %p/%d/%p\n", f, i,
417 f->file_name);
9efef3c4 418
bab3fd58 419 if (td->io_ops->open_file(td, f)) {
40b44f4a
JA
420 if (td->error != ENOENT) {
421 log_err("%s\n", td->verror);
422 err = 1;
423 }
541d66d7 424 clear_error(td);
07eb79df
JA
425 } else {
426 if (td->io_ops->close_file)
427 td->io_ops->close_file(td, f);
428 }
409b3417
JA
429
430 if (f->real_file_size == -1ULL && td->o.size)
431 f->real_file_size = td->o.size / td->o.nr_files;
7bb48f84 432 }
bab3fd58
JA
433
434 return err;
7bb48f84
JA
435}
436
437/*
438 * Open the files and setup files sizes, creating files if necessary.
439 */
53cdc686
JA
440int setup_files(struct thread_data *td)
441{
7bb48f84 442 unsigned long long total_size, extend_size;
53cdc686 443 struct fio_file *f;
af52b345 444 unsigned int i;
000b0803 445 int err = 0, need_extend;
53cdc686 446
ee56ad50
JA
447 dprint(FD_FILE, "setup files\n");
448
691c8fb0
JA
449 if (td->o.read_iolog_file)
450 return 0;
451
53cdc686
JA
452 /*
453 * if ioengine defines a setup() method, it's responsible for
7bb48f84
JA
454 * opening the files and setting f->real_file_size to indicate
455 * the valid range for that file.
53cdc686
JA
456 */
457 if (td->io_ops->setup)
7bb48f84
JA
458 err = td->io_ops->setup(td);
459 else
bab3fd58 460 err = get_file_sizes(td);
53cdc686 461
f1027063
JA
462 if (err)
463 return err;
464
0a7eb121 465 /*
7bb48f84
JA
466 * check sizes. if the files/devices do not exist and the size
467 * isn't passed to fio, abort.
0a7eb121 468 */
7bb48f84
JA
469 total_size = 0;
470 for_each_file(td, f, i) {
471 if (f->real_file_size == -1ULL)
472 total_size = -1ULL;
473 else
474 total_size += f->real_file_size;
475 }
0a7eb121 476
7bb48f84
JA
477 /*
478 * device/file sizes are zero and no size given, punt
479 */
1f809d15 480 if ((!total_size || total_size == -1ULL) && !td->o.size &&
aa31f1f1 481 !(td->io_ops->flags & FIO_NOIO) && !td->o.fill_device) {
7bb48f84 482 log_err("%s: you need to specify size=\n", td->o.name);
e1161c32 483 td_verror(td, EINVAL, "total_file_size");
53cdc686
JA
484 return 1;
485 }
486
7bb48f84
JA
487 /*
488 * now file sizes are known, so we can set ->io_size. if size= is
489 * not given, ->io_size is just equal to ->real_file_size. if size
490 * is given, ->io_size is size / nr_files.
491 */
492 extend_size = total_size = 0;
493 need_extend = 0;
494 for_each_file(td, f, i) {
bcdedd0a
YHJT
495 f->file_offset = td->o.start_offset;
496
7bb48f84
JA
497 if (!td->o.file_size_low) {
498 /*
499 * no file size range given, file size is equal to
500 * total size divided by number of files. if that is
501 * zero, set it to the real file size.
502 */
503 f->io_size = td->o.size / td->o.nr_files;
65bdb10a 504 if (!f->io_size)
273f8c91 505 f->io_size = f->real_file_size - f->file_offset;
7bb48f84
JA
506 } else if (f->real_file_size < td->o.file_size_low ||
507 f->real_file_size > td->o.file_size_high) {
5ec10eaa 508 if (f->file_offset > td->o.file_size_low)
bcdedd0a 509 goto err_offset;
7bb48f84
JA
510 /*
511 * file size given. if it's fixed, use that. if it's a
512 * range, generate a random size in-between.
513 */
5ec10eaa
JA
514 if (td->o.file_size_low == td->o.file_size_high) {
515 f->io_size = td->o.file_size_low
516 - f->file_offset;
517 } else {
518 f->io_size = get_rand_file_size(td)
519 - f->file_offset;
520 }
65bdb10a 521 } else
bcdedd0a 522 f->io_size = f->real_file_size - f->file_offset;
53cdc686 523
7bb48f84
JA
524 if (f->io_size == -1ULL)
525 total_size = -1ULL;
526 else
527 total_size += f->io_size;
528
529 if (f->filetype == FIO_TYPE_FILE &&
bcdedd0a 530 (f->io_size + f->file_offset) > f->real_file_size &&
7bb48f84
JA
531 !(td->io_ops->flags & FIO_DISKLESSIO)) {
532 need_extend++;
bcdedd0a 533 extend_size += (f->io_size + f->file_offset);
7bb48f84 534 f->flags |= FIO_FILE_EXTEND;
5ec10eaa 535 }
7bb48f84 536 }
53cdc686 537
2298290e 538 if (!td->o.size || td->o.size > total_size)
7bb48f84 539 td->o.size = total_size;
21972cde 540
7bb48f84
JA
541 /*
542 * See if we need to extend some files
543 */
544 if (need_extend) {
545 temp_stall_ts = 1;
f627d8ae 546 log_info("%s: Laying out IO file(s) (%u file(s) / %LuMiB)\n",
7bb48f84
JA
547 td->o.name, need_extend, extend_size >> 20);
548
549 for_each_file(td, f, i) {
3baddf24
JA
550 unsigned long long old_len, extend_len;
551
7bb48f84
JA
552 if (!(f->flags & FIO_FILE_EXTEND))
553 continue;
554
409b3417 555 assert(f->filetype == FIO_TYPE_FILE);
7bb48f84 556 f->flags &= ~FIO_FILE_EXTEND;
3baddf24
JA
557 old_len = f->real_file_size;
558 extend_len = f->io_size + f->file_offset - old_len;
bcdedd0a 559 f->real_file_size = (f->io_size + f->file_offset);
7bb48f84
JA
560 err = extend_file(td, f);
561 if (err)
3baddf24
JA
562 break;
563
564 err = __file_invalidate_cache(td, f, old_len,
565 extend_len);
566 close(f->fd);
567 f->fd = -1;
568 if (err)
7bb48f84
JA
569 break;
570 }
571 temp_stall_ts = 0;
572 }
573
574 if (err)
575 return err;
576
577 if (!td->o.zone_size)
578 td->o.zone_size = td->o.size;
579
ea966f81
JA
580 /*
581 * iolog already set the total io size, if we read back
582 * stored entries.
583 */
584 if (!td->o.read_iolog_file)
585 td->total_io_size = td->o.size * td->o.loops;
7bb48f84 586 return 0;
bcdedd0a
YHJT
587err_offset:
588 log_err("%s: you need to specify valid offset=\n", td->o.name);
589 return 1;
53cdc686
JA
590}
591
68727076
JA
592int init_random_map(struct thread_data *td)
593{
509eab12 594 unsigned long long blocks, num_maps;
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595 struct fio_file *f;
596 unsigned int i;
597
de8dd119 598 if (td->o.norandommap || !td_random(td))
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599 return 0;
600
601 for_each_file(td, f, i) {
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602 blocks = (f->real_file_size + td->o.rw_min_bs - 1) /
603 (unsigned long long) td->o.rw_min_bs;
604 num_maps = (blocks + BLOCKS_PER_MAP - 1) /
605 (unsigned long long) BLOCKS_PER_MAP;
de605666 606 f->file_map = smalloc(num_maps * sizeof(int));
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607 if (f->file_map) {
608 f->num_maps = num_maps;
609 continue;
68727076 610 }
2b386d25 611 if (!td->o.softrandommap) {
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612 log_err("fio: failed allocating random map. If running"
613 " a large number of jobs, try the 'norandommap'"
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614 " option or set 'softrandommap'. Or give"
615 " a larger --alloc-size to fio.\n");
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616 return 1;
617 }
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618
619 log_info("fio: file %s failed allocating random map. Running "
620 "job without.\n", f->file_name);
621 f->num_maps = 0;
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622 }
623
624 return 0;
625}
626
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627void close_files(struct thread_data *td)
628{
0ab8db89 629 struct fio_file *f;
af52b345 630 unsigned int i;
53cdc686 631
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632 for_each_file(td, f, i)
633 td_io_close_file(td, f);
634}
635
636void close_and_free_files(struct thread_data *td)
637{
638 struct fio_file *f;
639 unsigned int i;
640
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641 dprint(FD_FILE, "close files\n");
642
0ab8db89 643 for_each_file(td, f, i) {
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644 if (td->o.unlink && f->filetype == FIO_TYPE_FILE) {
645 dprint(FD_FILE, "free unlink %s\n", f->file_name);
132ad46d 646 unlink(f->file_name);
ffdfabd4 647 }
bdb4e2e9 648
b5af8293 649 td_io_close_file(td, f);
b3dc7f07 650
f17c4392 651 sfree(f->file_name);
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652 f->file_name = NULL;
653
c343981b 654 if (f->file_map) {
f17c4392 655 sfree(f->file_map);
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656 f->file_map = NULL;
657 }
78d99e6a 658 sfree(f);
53cdc686 659 }
b4a6a59a 660
2dc1bbeb 661 td->o.filename = NULL;
cade3ef4 662 free(td->files);
9efef3c4 663 td->files_index = 0;
b4a6a59a 664 td->files = NULL;
2dc1bbeb 665 td->o.nr_files = 0;
53cdc686 666}
af52b345 667
e3bab463 668static void get_file_type(struct fio_file *f)
af52b345
JA
669{
670 struct stat sb;
671
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672 if (!strcmp(f->file_name, "-"))
673 f->filetype = FIO_TYPE_PIPE;
674 else
675 f->filetype = FIO_TYPE_FILE;
af52b345 676
e3bab463 677 if (!lstat(f->file_name, &sb)) {
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JA
678 if (S_ISBLK(sb.st_mode))
679 f->filetype = FIO_TYPE_BD;
680 else if (S_ISCHR(sb.st_mode))
681 f->filetype = FIO_TYPE_CHAR;
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682 else if (S_ISFIFO(sb.st_mode))
683 f->filetype = FIO_TYPE_PIPE;
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684 }
685}
686
f29b25a3 687int add_file(struct thread_data *td, const char *fname)
af52b345 688{
7b4e4fe5 689 int cur_files = td->files_index;
bd0ee748 690 char file_name[PATH_MAX];
af52b345 691 struct fio_file *f;
bd0ee748 692 int len = 0;
af52b345 693
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694 dprint(FD_FILE, "add file %s\n", fname);
695
f17c4392 696 f = smalloc(sizeof(*f));
af52b345 697 f->fd = -1;
bd0ee748 698
9efef3c4 699 dprint(FD_FILE, "resize file array to %d files\n", cur_files + 1);
126d65c6 700
9efef3c4 701 td->files = realloc(td->files, (cur_files + 1) * sizeof(f));
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702 td->files[cur_files] = f;
703
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704 /*
705 * init function, io engine may not be loaded yet
706 */
707 if (td->io_ops && (td->io_ops->flags & FIO_DISKLESSIO))
708 f->real_file_size = -1ULL;
709
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710 if (td->o.directory)
711 len = sprintf(file_name, "%s/", td->o.directory);
712
713 sprintf(file_name + len, "%s", fname);
f17c4392 714 f->file_name = smalloc_strdup(file_name);
af52b345 715
e3bab463 716 get_file_type(f);
af52b345 717
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718 switch (td->o.file_lock_mode) {
719 case FILE_LOCK_NONE:
720 break;
721 case FILE_LOCK_READWRITE:
722 f->lock = fio_mutex_rw_init();
723 break;
724 case FILE_LOCK_EXCLUSIVE:
725 f->lock = fio_mutex_init(1);
726 break;
727 default:
728 log_err("fio: unknown lock mode: %d\n", td->o.file_lock_mode);
729 assert(0);
730 }
29c1349f 731
7b4e4fe5 732 td->files_index++;
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JA
733 if (f->filetype == FIO_TYPE_FILE)
734 td->nr_normal_files++;
f29b25a3 735
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736 dprint(FD_FILE, "file %p \"%s\" added at %d\n", f, f->file_name,
737 cur_files);
9efef3c4 738
f29b25a3 739 return cur_files;
af52b345 740}
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JA
741
742void get_file(struct fio_file *f)
743{
8172fe97 744 dprint(FD_FILE, "get file %s, ref=%d\n", f->file_name, f->references);
97af62ce 745 assert(f->flags & FIO_FILE_OPEN);
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JA
746 f->references++;
747}
748
6977bcd0 749int put_file(struct thread_data *td, struct fio_file *f)
0ad920e7 750{
98e1ac4e 751 int f_ret = 0, ret = 0;
6977bcd0 752
8172fe97 753 dprint(FD_FILE, "put file %s, ref=%d\n", f->file_name, f->references);
ee56ad50 754
0ad920e7 755 if (!(f->flags & FIO_FILE_OPEN))
6977bcd0 756 return 0;
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JA
757
758 assert(f->references);
759 if (--f->references)
6977bcd0 760 return 0;
0ad920e7 761
d424d4dd 762 if (should_fsync(td) && td->o.fsync_on_close)
98e1ac4e 763 f_ret = fsync(f->fd);
ebb1415f 764
0ad920e7 765 if (td->io_ops->close_file)
6977bcd0 766 ret = td->io_ops->close_file(td, f);
1020a139 767
98e1ac4e 768 if (!ret)
a5fb461f 769 ret = f_ret;
98e1ac4e 770
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JA
771 td->nr_open_files--;
772 f->flags &= ~FIO_FILE_OPEN;
6977bcd0 773 return ret;
0ad920e7 774}
bbf6b540 775
4d4e80f2 776void lock_file(struct thread_data *td, struct fio_file *f, enum fio_ddir ddir)
b2bd2bd9 777{
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JA
778 if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE)
779 return;
29c1349f 780
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JA
781 if (f->lock_owner == td && f->lock_batch--)
782 return;
783
784 if (td->o.file_lock_mode == FILE_LOCK_READWRITE) {
785 if (ddir == DDIR_READ)
786 fio_mutex_down_read(f->lock);
787 else
788 fio_mutex_down_write(f->lock);
789 } else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE)
790 fio_mutex_down(f->lock);
791
792 f->lock_owner = td;
793 f->lock_batch = td->o.lockfile_batch;
794 f->lock_ddir = ddir;
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795}
796
4d4e80f2 797void unlock_file(struct thread_data *td, struct fio_file *f)
b2bd2bd9 798{
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799 if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE)
800 return;
801 if (f->lock_batch)
802 return;
803
804 if (td->o.file_lock_mode == FILE_LOCK_READWRITE) {
805 const int is_read = f->lock_ddir == DDIR_READ;
806 int val = fio_mutex_getval(f->lock);
29c1349f 807
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808 if ((is_read && val == 1) || (!is_read && val == -1))
809 f->lock_owner = NULL;
29c1349f 810
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811 if (is_read)
812 fio_mutex_up_read(f->lock);
813 else
814 fio_mutex_up_write(f->lock);
815 } else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE) {
816 int val = fio_mutex_getval(f->lock);
817
818 if (val == 0)
819 f->lock_owner = NULL;
820
821 fio_mutex_up(f->lock);
29c1349f 822 }
b2bd2bd9
JA
823}
824
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825void unlock_file_all(struct thread_data *td, struct fio_file *f)
826{
827 if (f->lock_owner != td)
828 return;
829
830 f->lock_batch = 0;
831 unlock_file(td, f);
832}
833
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834static int recurse_dir(struct thread_data *td, const char *dirname)
835{
836 struct dirent *dir;
837 int ret = 0;
838 DIR *D;
839
840 D = opendir(dirname);
841 if (!D) {
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842 char buf[FIO_VERROR_SIZE];
843
844 snprintf(buf, FIO_VERROR_SIZE - 1, "opendir(%s)", dirname);
845 td_verror(td, errno, buf);
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846 return 1;
847 }
848
849 while ((dir = readdir(D)) != NULL) {
850 char full_path[PATH_MAX];
851 struct stat sb;
852
e85b2b83
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853 if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, ".."))
854 continue;
96d32d51 855
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856 sprintf(full_path, "%s/%s", dirname, dir->d_name);
857
858 if (lstat(full_path, &sb) == -1) {
859 if (errno != ENOENT) {
860 td_verror(td, errno, "stat");
861 return 1;
862 }
863 }
864
865 if (S_ISREG(sb.st_mode)) {
866 add_file(td, full_path);
2dc1bbeb 867 td->o.nr_files++;
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868 continue;
869 }
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870 if (!S_ISDIR(sb.st_mode))
871 continue;
bbf6b540 872
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873 ret = recurse_dir(td, full_path);
874 if (ret)
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875 break;
876 }
877
878 closedir(D);
879 return ret;
880}
881
882int add_dir_files(struct thread_data *td, const char *path)
883{
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884 int ret = recurse_dir(td, path);
885
886 if (!ret)
887 log_info("fio: opendir added %d files\n", td->o.nr_files);
888
889 return ret;
bbf6b540 890}
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891
892void dup_files(struct thread_data *td, struct thread_data *org)
893{
894 struct fio_file *f;
895 unsigned int i;
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896
897 dprint(FD_FILE, "dup files: %d\n", org->files_index);
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JA
898
899 if (!org->files)
900 return;
901
9efef3c4 902 td->files = malloc(org->files_index * sizeof(f));
cade3ef4 903
9efef3c4 904 for_each_file(org, f, i) {
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JA
905 struct fio_file *__f;
906
f17c4392 907 __f = smalloc(sizeof(*__f));
b0fe421a 908
bc3456fa 909 if (f->file_name) {
f17c4392 910 __f->file_name = smalloc_strdup(f->file_name);
bc3456fa
AC
911 __f->filetype = f->filetype;
912 }
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913
914 td->files[i] = __f;
cade3ef4
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915 }
916}
f29b25a3
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917
918/*
919 * Returns the index that matches the filename, or -1 if not there
920 */
921int get_fileno(struct thread_data *td, const char *fname)
922{
923 struct fio_file *f;
924 unsigned int i;
925
926 for_each_file(td, f, i)
927 if (!strcmp(f->file_name, fname))
928 return i;
929
930 return -1;
931}
932
933/*
934 * For log usage, where we add/open/close files automatically
935 */
936void free_release_files(struct thread_data *td)
937{
938 close_files(td);
939 td->files_index = 0;
940 td->nr_normal_files = 0;
941}