Don't make posix_fallocate() set td->verror
[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
ee56ad50
JA
71 dprint(FD_FILE, "fallocate file %s, size %llu\n", f->file_name,
72 f->real_file_size);
739097e6
JA
73 r = posix_fallocate(f->fd, 0, f->real_file_size);
74 if (r < 0)
65942476 75 log_err("fio: posix_fallocate fails: %s\n", strerror(-r));
40f8298c 76
2dc1bbeb
JA
77 b = malloc(td->o.max_bs[DDIR_WRITE]);
78 memset(b, 0, td->o.max_bs[DDIR_WRITE]);
53cdc686 79
7bb48f84 80 left = f->real_file_size;
53cdc686 81 while (left && !td->terminate) {
2dc1bbeb 82 bs = td->o.max_bs[DDIR_WRITE];
53cdc686
JA
83 if (bs > left)
84 bs = left;
85
86 r = write(f->fd, b, bs);
87
88 if (r == (int) bs) {
89 left -= bs;
90 continue;
91 } else {
92 if (r < 0)
e1161c32 93 td_verror(td, errno, "write");
53cdc686 94 else
e1161c32 95 td_verror(td, EIO, "write");
53cdc686
JA
96
97 break;
98 }
99 }
100
ffdfabd4
JA
101 if (td->terminate) {
102 dprint(FD_FILE, "terminate unlink %s\n", f->file_name);
53cdc686 103 unlink(f->file_name);
ffdfabd4 104 } else if (td->o.create_fsync) {
98e1ac4e
JA
105 if (fsync(f->fd) < 0) {
106 td_verror(td, errno, "fsync");
107 goto err;
108 }
109 }
53cdc686
JA
110
111 free(b);
507a702f 112done:
53cdc686
JA
113 return 0;
114err:
115 close(f->fd);
116 f->fd = -1;
117 return 1;
118}
119
7bb48f84 120static unsigned long long get_rand_file_size(struct thread_data *td)
9c60ce64 121{
5ec10eaa 122 unsigned long long ret, size_d;
9c60ce64
JA
123 long r;
124
9c60ce64 125 r = os_random_long(&td->file_size_state);
5ec10eaa
JA
126 size_d = td->o.file_size_high - td->o.file_size_low;
127 ret = (unsigned long long) ((double) size_d * (r / (RAND_MAX + 1.0)));
128 ret += td->o.file_size_low;
2dc1bbeb 129 ret -= (ret % td->o.rw_min_bs);
9c60ce64
JA
130 return ret;
131}
132
53cdc686
JA
133static int file_size(struct thread_data *td, struct fio_file *f)
134{
135 struct stat st;
136
7bb48f84
JA
137 if (fstat(f->fd, &st) == -1) {
138 td_verror(td, errno, "fstat");
139 return 1;
140 }
53cdc686 141
7bb48f84 142 f->real_file_size = st.st_size;
53cdc686
JA
143 return 0;
144}
145
146static int bdev_size(struct thread_data *td, struct fio_file *f)
147{
148 unsigned long long bytes;
149 int r;
150
151 r = blockdev_size(f->fd, &bytes);
152 if (r) {
e1161c32 153 td_verror(td, r, "blockdev_size");
53cdc686
JA
154 return 1;
155 }
156
157 f->real_file_size = bytes;
53cdc686
JA
158 return 0;
159}
160
161static int get_file_size(struct thread_data *td, struct fio_file *f)
162{
163 int ret = 0;
164
409b3417
JA
165 if (f->flags & FIO_SIZE_KNOWN)
166 return 0;
167
7bb48f84
JA
168 if (f->filetype == FIO_TYPE_FILE)
169 ret = file_size(td, f);
170 else if (f->filetype == FIO_TYPE_BD)
53cdc686
JA
171 ret = bdev_size(td, f);
172 else
173 f->real_file_size = -1;
174
175 if (ret)
176 return ret;
177
178 if (f->file_offset > f->real_file_size) {
5ec10eaa
JA
179 log_err("%s: offset extends end (%Lu > %Lu)\n", td->o.name,
180 f->file_offset, f->real_file_size);
53cdc686
JA
181 return 1;
182 }
183
409b3417 184 f->flags |= FIO_SIZE_KNOWN;
53cdc686
JA
185 return 0;
186}
187
3baddf24
JA
188static int __file_invalidate_cache(struct thread_data *td, struct fio_file *f,
189 unsigned long long off,
190 unsigned long long len)
e5b401d4
JA
191{
192 int ret = 0;
193
3baddf24
JA
194 if (len == -1ULL)
195 len = f->io_size;
196 if (off == -1ULL)
197 off = f->file_offset;
ee56ad50 198
3baddf24
JA
199 dprint(FD_IO, "invalidate cache %s: %llu/%llu\n", f->file_name, off,
200 len);
b5af8293 201
e5b401d4
JA
202 /*
203 * FIXME: add blockdev flushing too
204 */
b5af8293 205 if (f->mmap)
3baddf24 206 ret = madvise(f->mmap, len, MADV_DONTNEED);
5ec10eaa 207 else if (f->filetype == FIO_TYPE_FILE) {
3baddf24 208 ret = fadvise(f->fd, off, len, POSIX_FADV_DONTNEED);
5ec10eaa 209 } else if (f->filetype == FIO_TYPE_BD) {
b5af8293 210 ret = blockdev_invalidate_cache(f->fd);
7e0e25c9 211 if (ret < 0 && errno == EACCES && geteuid()) {
7172cfe8 212 if (!root_warn) {
5ec10eaa
JA
213 log_err("fio: only root may flush block "
214 "devices. Cache flush bypassed!\n");
7172cfe8
JA
215 root_warn = 1;
216 }
7e0e25c9
JA
217 ret = 0;
218 }
b5605e9d 219 } else if (f->filetype == FIO_TYPE_CHAR || f->filetype == FIO_TYPE_PIPE)
e5b401d4
JA
220 ret = 0;
221
222 if (ret < 0) {
e1161c32 223 td_verror(td, errno, "invalidate_cache");
e5b401d4 224 return 1;
3baddf24
JA
225 } else if (ret > 0) {
226 td_verror(td, ret, "invalidate_cache");
227 return 1;
e5b401d4
JA
228 }
229
ad2da605 230 return ret;
3baddf24
JA
231
232}
233
234int file_invalidate_cache(struct thread_data *td, struct fio_file *f)
235{
a5fb461f
JA
236 if (!(f->flags & FIO_FILE_OPEN))
237 return 0;
238
3baddf24 239 return __file_invalidate_cache(td, f, -1, -1);
e5b401d4
JA
240}
241
6977bcd0 242int generic_close_file(struct thread_data fio_unused *td, struct fio_file *f)
53cdc686 243{
6977bcd0
JA
244 int ret = 0;
245
ee56ad50 246 dprint(FD_FILE, "fd close %s\n", f->file_name);
4906e0b5
JA
247
248 remove_file_hash(f);
249
6977bcd0
JA
250 if (close(f->fd) < 0)
251 ret = errno;
252
b5af8293 253 f->fd = -1;
6977bcd0 254 return ret;
53cdc686
JA
255}
256
4d4e80f2 257static int file_lookup_open(struct fio_file *f, int flags)
53cdc686 258{
29c1349f 259 struct fio_file *__f;
4d4e80f2
JA
260 int from_hash;
261
262 __f = lookup_file_hash(f->file_name);
263 if (__f) {
9efef3c4 264 dprint(FD_FILE, "found file in hash %s\n", f->file_name);
4d4e80f2
JA
265 /*
266 * racy, need the __f->lock locked
267 */
268 f->lock = __f->lock;
269 f->lock_owner = __f->lock_owner;
270 f->lock_batch = __f->lock_batch;
271 f->lock_ddir = __f->lock_ddir;
4d4e80f2
JA
272 from_hash = 1;
273 } else {
9efef3c4 274 dprint(FD_FILE, "file not found in hash %s\n", f->file_name);
4d4e80f2
JA
275 from_hash = 0;
276 }
277
e8670ef8 278 f->fd = open(f->file_name, flags, 0600);
4d4e80f2
JA
279 return from_hash;
280}
281
282int generic_open_file(struct thread_data *td, struct fio_file *f)
283{
66159828 284 int is_std = 0;
53cdc686 285 int flags = 0;
29c1349f 286 int from_hash = 0;
53cdc686 287
ee56ad50
JA
288 dprint(FD_FILE, "fd open %s\n", f->file_name);
289
66159828
JA
290 if (!strcmp(f->file_name, "-")) {
291 if (td_rw(td)) {
292 log_err("fio: can't read/write to stdin/out\n");
293 return 1;
294 }
295 is_std = 1;
ce98fa66
JA
296
297 /*
298 * move output logging to stderr, if we are writing to stdout
299 */
300 if (td_write(td))
301 f_out = stderr;
66159828
JA
302 }
303
2dc1bbeb 304 if (td->o.odirect)
2fd233b7 305 flags |= OS_O_DIRECT;
2dc1bbeb 306 if (td->o.sync_io)
2fd233b7 307 flags |= O_SYNC;
ad92396c 308 if (f->filetype != FIO_TYPE_FILE)
5921e80c 309 flags |= FIO_O_NOATIME;
53cdc686 310
056f3459 311open_again:
660a1cb5 312 if (td_write(td)) {
17308158
JA
313 if (!read_only)
314 flags |= O_RDWR;
53cdc686 315
af52b345 316 if (f->filetype == FIO_TYPE_FILE)
2fd233b7 317 flags |= O_CREAT;
2fd233b7 318
66159828
JA
319 if (is_std)
320 f->fd = dup(STDOUT_FILENO);
4d4e80f2
JA
321 else
322 from_hash = file_lookup_open(f, flags);
2fd233b7 323 } else {
4241ea8f 324 if (f->filetype == FIO_TYPE_CHAR && !read_only)
2fd233b7
JA
325 flags |= O_RDWR;
326 else
327 flags |= O_RDONLY;
328
66159828
JA
329 if (is_std)
330 f->fd = dup(STDIN_FILENO);
4d4e80f2
JA
331 else
332 from_hash = file_lookup_open(f, flags);
53cdc686
JA
333 }
334
335 if (f->fd == -1) {
e4e33258 336 char buf[FIO_VERROR_SIZE];
e1161c32
JA
337 int __e = errno;
338
5921e80c
JA
339 if (errno == EPERM && (flags & FIO_O_NOATIME)) {
340 flags &= ~FIO_O_NOATIME;
056f3459
AC
341 goto open_again;
342 }
343
e8670ef8 344 snprintf(buf, sizeof(buf) - 1, "open(%s)", f->file_name);
e4e33258
JA
345
346 td_verror(td, __e, buf);
53cdc686
JA
347 }
348
b5af8293
JA
349 if (get_file_size(td, f))
350 goto err;
351
29c1349f
JA
352 if (!from_hash && f->fd != -1) {
353 if (add_file_hash(f)) {
354 int ret;
355
356 /*
357 * OK to ignore, we haven't done anything with it
358 */
359 ret = generic_close_file(td, f);
360 goto open_again;
361 }
362 }
4906e0b5 363
53cdc686 364 return 0;
b5af8293
JA
365err:
366 close(f->fd);
367 return 1;
368}
369
21972cde
JA
370int open_files(struct thread_data *td)
371{
372 struct fio_file *f;
af52b345
JA
373 unsigned int i;
374 int err = 0;
21972cde 375
ee56ad50
JA
376 dprint(FD_FILE, "open files\n");
377
21972cde 378 for_each_file(td, f, i) {
b5af8293 379 err = td_io_open_file(td, f);
9bf27b45
JA
380 if (err) {
381 if (td->error == EMFILE) {
5ec10eaa
JA
382 log_err("fio: limited open files to: %d\n",
383 td->nr_open_files);
9bf27b45
JA
384 td->o.open_files = td->nr_open_files;
385 err = 0;
386 clear_error(td);
387 }
21972cde 388 break;
9bf27b45 389 }
b5af8293 390
2dc1bbeb 391 if (td->o.open_files == td->nr_open_files)
b5af8293 392 break;
21972cde
JA
393 }
394
7abf833d
JA
395 if (!err)
396 return 0;
397
bdb4e2e9 398 for_each_file(td, f, i)
b5af8293 399 td_io_close_file(td, f);
7abf833d 400
21972cde
JA
401 return err;
402}
403
7bb48f84
JA
404/*
405 * open/close all files, so that ->real_file_size gets set
406 */
bab3fd58 407static int get_file_sizes(struct thread_data *td)
7bb48f84
JA
408{
409 struct fio_file *f;
410 unsigned int i;
bab3fd58 411 int err = 0;
7bb48f84
JA
412
413 for_each_file(td, f, i) {
5ec10eaa
JA
414 dprint(FD_FILE, "get file size for %p/%d/%p\n", f, i,
415 f->file_name);
9efef3c4 416
bab3fd58 417 if (td->io_ops->open_file(td, f)) {
40b44f4a
JA
418 if (td->error != ENOENT) {
419 log_err("%s\n", td->verror);
420 err = 1;
421 }
541d66d7 422 clear_error(td);
07eb79df
JA
423 } else {
424 if (td->io_ops->close_file)
425 td->io_ops->close_file(td, f);
426 }
409b3417
JA
427
428 if (f->real_file_size == -1ULL && td->o.size)
429 f->real_file_size = td->o.size / td->o.nr_files;
7bb48f84 430 }
bab3fd58
JA
431
432 return err;
7bb48f84
JA
433}
434
435/*
436 * Open the files and setup files sizes, creating files if necessary.
437 */
53cdc686
JA
438int setup_files(struct thread_data *td)
439{
7bb48f84 440 unsigned long long total_size, extend_size;
53cdc686 441 struct fio_file *f;
af52b345 442 unsigned int i;
000b0803 443 int err = 0, need_extend;
53cdc686 444
ee56ad50
JA
445 dprint(FD_FILE, "setup files\n");
446
691c8fb0
JA
447 if (td->o.read_iolog_file)
448 return 0;
449
53cdc686
JA
450 /*
451 * if ioengine defines a setup() method, it's responsible for
7bb48f84
JA
452 * opening the files and setting f->real_file_size to indicate
453 * the valid range for that file.
53cdc686
JA
454 */
455 if (td->io_ops->setup)
7bb48f84
JA
456 err = td->io_ops->setup(td);
457 else
bab3fd58 458 err = get_file_sizes(td);
53cdc686 459
f1027063
JA
460 if (err)
461 return err;
462
0a7eb121 463 /*
7bb48f84
JA
464 * check sizes. if the files/devices do not exist and the size
465 * isn't passed to fio, abort.
0a7eb121 466 */
7bb48f84
JA
467 total_size = 0;
468 for_each_file(td, f, i) {
469 if (f->real_file_size == -1ULL)
470 total_size = -1ULL;
471 else
472 total_size += f->real_file_size;
473 }
0a7eb121 474
7bb48f84
JA
475 /*
476 * device/file sizes are zero and no size given, punt
477 */
1f809d15 478 if ((!total_size || total_size == -1ULL) && !td->o.size &&
aa31f1f1 479 !(td->io_ops->flags & FIO_NOIO) && !td->o.fill_device) {
7bb48f84 480 log_err("%s: you need to specify size=\n", td->o.name);
e1161c32 481 td_verror(td, EINVAL, "total_file_size");
53cdc686
JA
482 return 1;
483 }
484
7bb48f84
JA
485 /*
486 * now file sizes are known, so we can set ->io_size. if size= is
487 * not given, ->io_size is just equal to ->real_file_size. if size
488 * is given, ->io_size is size / nr_files.
489 */
490 extend_size = total_size = 0;
491 need_extend = 0;
492 for_each_file(td, f, i) {
bcdedd0a
YHJT
493 f->file_offset = td->o.start_offset;
494
7bb48f84
JA
495 if (!td->o.file_size_low) {
496 /*
497 * no file size range given, file size is equal to
498 * total size divided by number of files. if that is
499 * zero, set it to the real file size.
500 */
501 f->io_size = td->o.size / td->o.nr_files;
65bdb10a 502 if (!f->io_size)
273f8c91 503 f->io_size = f->real_file_size - f->file_offset;
7bb48f84
JA
504 } else if (f->real_file_size < td->o.file_size_low ||
505 f->real_file_size > td->o.file_size_high) {
5ec10eaa 506 if (f->file_offset > td->o.file_size_low)
bcdedd0a 507 goto err_offset;
7bb48f84
JA
508 /*
509 * file size given. if it's fixed, use that. if it's a
510 * range, generate a random size in-between.
511 */
5ec10eaa
JA
512 if (td->o.file_size_low == td->o.file_size_high) {
513 f->io_size = td->o.file_size_low
514 - f->file_offset;
515 } else {
516 f->io_size = get_rand_file_size(td)
517 - f->file_offset;
518 }
65bdb10a 519 } else
bcdedd0a 520 f->io_size = f->real_file_size - f->file_offset;
53cdc686 521
7bb48f84
JA
522 if (f->io_size == -1ULL)
523 total_size = -1ULL;
524 else
525 total_size += f->io_size;
526
527 if (f->filetype == FIO_TYPE_FILE &&
bcdedd0a 528 (f->io_size + f->file_offset) > f->real_file_size &&
7bb48f84
JA
529 !(td->io_ops->flags & FIO_DISKLESSIO)) {
530 need_extend++;
bcdedd0a 531 extend_size += (f->io_size + f->file_offset);
7bb48f84 532 f->flags |= FIO_FILE_EXTEND;
5ec10eaa 533 }
7bb48f84 534 }
53cdc686 535
2298290e 536 if (!td->o.size || td->o.size > total_size)
7bb48f84 537 td->o.size = total_size;
21972cde 538
7bb48f84
JA
539 /*
540 * See if we need to extend some files
541 */
542 if (need_extend) {
543 temp_stall_ts = 1;
f627d8ae 544 log_info("%s: Laying out IO file(s) (%u file(s) / %LuMiB)\n",
7bb48f84
JA
545 td->o.name, need_extend, extend_size >> 20);
546
547 for_each_file(td, f, i) {
3baddf24
JA
548 unsigned long long old_len, extend_len;
549
7bb48f84
JA
550 if (!(f->flags & FIO_FILE_EXTEND))
551 continue;
552
409b3417 553 assert(f->filetype == FIO_TYPE_FILE);
7bb48f84 554 f->flags &= ~FIO_FILE_EXTEND;
3baddf24
JA
555 old_len = f->real_file_size;
556 extend_len = f->io_size + f->file_offset - old_len;
bcdedd0a 557 f->real_file_size = (f->io_size + f->file_offset);
7bb48f84
JA
558 err = extend_file(td, f);
559 if (err)
3baddf24
JA
560 break;
561
562 err = __file_invalidate_cache(td, f, old_len,
563 extend_len);
564 close(f->fd);
565 f->fd = -1;
566 if (err)
7bb48f84
JA
567 break;
568 }
569 temp_stall_ts = 0;
570 }
571
572 if (err)
573 return err;
574
575 if (!td->o.zone_size)
576 td->o.zone_size = td->o.size;
577
ea966f81
JA
578 /*
579 * iolog already set the total io size, if we read back
580 * stored entries.
581 */
582 if (!td->o.read_iolog_file)
583 td->total_io_size = td->o.size * td->o.loops;
7bb48f84 584 return 0;
bcdedd0a
YHJT
585err_offset:
586 log_err("%s: you need to specify valid offset=\n", td->o.name);
587 return 1;
53cdc686
JA
588}
589
68727076
JA
590int init_random_map(struct thread_data *td)
591{
509eab12 592 unsigned long long blocks, num_maps;
68727076
JA
593 struct fio_file *f;
594 unsigned int i;
595
de8dd119 596 if (td->o.norandommap || !td_random(td))
68727076
JA
597 return 0;
598
599 for_each_file(td, f, i) {
5ec10eaa
JA
600 blocks = (f->real_file_size + td->o.rw_min_bs - 1) /
601 (unsigned long long) td->o.rw_min_bs;
602 num_maps = (blocks + BLOCKS_PER_MAP - 1) /
603 (unsigned long long) BLOCKS_PER_MAP;
de605666 604 f->file_map = smalloc(num_maps * sizeof(int));
303032ae
JA
605 if (f->file_map) {
606 f->num_maps = num_maps;
607 continue;
68727076 608 }
2b386d25 609 if (!td->o.softrandommap) {
5ec10eaa
JA
610 log_err("fio: failed allocating random map. If running"
611 " a large number of jobs, try the 'norandommap'"
2b386d25
JA
612 " option or set 'softrandommap'. Or give"
613 " a larger --alloc-size to fio.\n");
68727076
JA
614 return 1;
615 }
303032ae
JA
616
617 log_info("fio: file %s failed allocating random map. Running "
618 "job without.\n", f->file_name);
619 f->num_maps = 0;
68727076
JA
620 }
621
622 return 0;
623}
624
53cdc686
JA
625void close_files(struct thread_data *td)
626{
0ab8db89 627 struct fio_file *f;
af52b345 628 unsigned int i;
53cdc686 629
24ffd2c2
JA
630 for_each_file(td, f, i)
631 td_io_close_file(td, f);
632}
633
634void close_and_free_files(struct thread_data *td)
635{
636 struct fio_file *f;
637 unsigned int i;
638
ee56ad50
JA
639 dprint(FD_FILE, "close files\n");
640
0ab8db89 641 for_each_file(td, f, i) {
ffdfabd4
JA
642 if (td->o.unlink && f->filetype == FIO_TYPE_FILE) {
643 dprint(FD_FILE, "free unlink %s\n", f->file_name);
132ad46d 644 unlink(f->file_name);
ffdfabd4 645 }
bdb4e2e9 646
b5af8293 647 td_io_close_file(td, f);
b3dc7f07 648
f17c4392 649 sfree(f->file_name);
fa1da865
JA
650 f->file_name = NULL;
651
c343981b 652 if (f->file_map) {
f17c4392 653 sfree(f->file_map);
c343981b
JA
654 f->file_map = NULL;
655 }
78d99e6a 656 sfree(f);
53cdc686 657 }
b4a6a59a 658
2dc1bbeb 659 td->o.filename = NULL;
cade3ef4 660 free(td->files);
9efef3c4 661 td->files_index = 0;
b4a6a59a 662 td->files = NULL;
2dc1bbeb 663 td->o.nr_files = 0;
53cdc686 664}
af52b345 665
e3bab463 666static void get_file_type(struct fio_file *f)
af52b345
JA
667{
668 struct stat sb;
669
66159828
JA
670 if (!strcmp(f->file_name, "-"))
671 f->filetype = FIO_TYPE_PIPE;
672 else
673 f->filetype = FIO_TYPE_FILE;
af52b345 674
e3bab463 675 if (!lstat(f->file_name, &sb)) {
af52b345
JA
676 if (S_ISBLK(sb.st_mode))
677 f->filetype = FIO_TYPE_BD;
678 else if (S_ISCHR(sb.st_mode))
679 f->filetype = FIO_TYPE_CHAR;
b5605e9d
JA
680 else if (S_ISFIFO(sb.st_mode))
681 f->filetype = FIO_TYPE_PIPE;
af52b345
JA
682 }
683}
684
f29b25a3 685int add_file(struct thread_data *td, const char *fname)
af52b345 686{
7b4e4fe5 687 int cur_files = td->files_index;
bd0ee748 688 char file_name[PATH_MAX];
af52b345 689 struct fio_file *f;
bd0ee748 690 int len = 0;
af52b345 691
ee56ad50
JA
692 dprint(FD_FILE, "add file %s\n", fname);
693
f17c4392 694 f = smalloc(sizeof(*f));
af52b345 695 f->fd = -1;
bd0ee748 696
9efef3c4 697 dprint(FD_FILE, "resize file array to %d files\n", cur_files + 1);
126d65c6 698
9efef3c4 699 td->files = realloc(td->files, (cur_files + 1) * sizeof(f));
126d65c6
JA
700 td->files[cur_files] = f;
701
07eb79df
JA
702 /*
703 * init function, io engine may not be loaded yet
704 */
705 if (td->io_ops && (td->io_ops->flags & FIO_DISKLESSIO))
706 f->real_file_size = -1ULL;
707
bd0ee748
JA
708 if (td->o.directory)
709 len = sprintf(file_name, "%s/", td->o.directory);
710
711 sprintf(file_name + len, "%s", fname);
f17c4392 712 f->file_name = smalloc_strdup(file_name);
af52b345 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));
b0fe421a 906
cade3ef4 907 if (f->file_name)
f17c4392 908 __f->file_name = smalloc_strdup(f->file_name);
b0fe421a
JA
909
910 td->files[i] = __f;
cade3ef4
JA
911 }
912}
f29b25a3
JA
913
914/*
915 * Returns the index that matches the filename, or -1 if not there
916 */
917int get_fileno(struct thread_data *td, const char *fname)
918{
919 struct fio_file *f;
920 unsigned int i;
921
922 for_each_file(td, f, i)
923 if (!strcmp(f->file_name, fname))
924 return i;
925
926 return -1;
927}
928
929/*
930 * For log usage, where we add/open/close files automatically
931 */
932void free_release_files(struct thread_data *td)
933{
934 close_files(td);
935 td->files_index = 0;
936 td->nr_normal_files = 0;
937}