syslet: we have fls(), use it for rounding ring size up
[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"
53cdc686 11
7172cfe8
JA
12static int root_warn;
13
7bb48f84 14static int extend_file(struct thread_data *td, struct fio_file *f)
25205e97 15{
ea443657 16 int r, new_layout = 0, unlink_file = 0, flags;
25205e97
JA
17 unsigned long long left;
18 unsigned int bs;
19 char *b;
b2a15192 20
4241ea8f
JA
21 if (read_only) {
22 log_err("fio: refusing extend of file due to read-only\n");
23 return 0;
24 }
25
507a702f
JA
26 /*
27 * check if we need to lay the file out complete again. fio
28 * does that for operations involving reads, or for writes
29 * where overwrite is set
30 */
31 if (td_read(td) || (td_write(td) && td->o.overwrite))
32 new_layout = 1;
ea443657
JA
33 if (td_write(td) && !td->o.overwrite)
34 unlink_file = 1;
507a702f 35
ea443657 36 if ((unlink_file || new_layout) && (f->flags & FIO_FILE_EXISTS)) {
7bb48f84
JA
37 if (unlink(f->file_name) < 0) {
38 td_verror(td, errno, "unlink");
39 return 1;
40 }
41 }
42
507a702f
JA
43 flags = O_WRONLY | O_CREAT;
44 if (new_layout)
45 flags |= O_TRUNC;
46
47 f->fd = open(f->file_name, flags, 0644);
53cdc686 48 if (f->fd < 0) {
e1161c32 49 td_verror(td, errno, "open");
53cdc686
JA
50 return 1;
51 }
52
7bb48f84 53 if (ftruncate(f->fd, f->real_file_size) == -1) {
e1161c32 54 td_verror(td, errno, "ftruncate");
53cdc686
JA
55 goto err;
56 }
57
e8be2ad7
JA
58 if (!new_layout)
59 goto done;
60
7bb48f84 61 if (posix_fallocate(f->fd, 0, f->real_file_size) < 0) {
e1161c32 62 td_verror(td, errno, "posix_fallocate");
40f8298c
JA
63 goto err;
64 }
65
2dc1bbeb
JA
66 b = malloc(td->o.max_bs[DDIR_WRITE]);
67 memset(b, 0, td->o.max_bs[DDIR_WRITE]);
53cdc686 68
7bb48f84 69 left = f->real_file_size;
53cdc686 70 while (left && !td->terminate) {
2dc1bbeb 71 bs = td->o.max_bs[DDIR_WRITE];
53cdc686
JA
72 if (bs > left)
73 bs = left;
74
75 r = write(f->fd, b, bs);
76
77 if (r == (int) bs) {
78 left -= bs;
79 continue;
80 } else {
81 if (r < 0)
e1161c32 82 td_verror(td, errno, "write");
53cdc686 83 else
e1161c32 84 td_verror(td, EIO, "write");
53cdc686
JA
85
86 break;
87 }
88 }
89
90 if (td->terminate)
91 unlink(f->file_name);
2dc1bbeb 92 else if (td->o.create_fsync)
53cdc686
JA
93 fsync(f->fd);
94
95 free(b);
507a702f 96done:
53cdc686
JA
97 close(f->fd);
98 f->fd = -1;
99 return 0;
100err:
101 close(f->fd);
102 f->fd = -1;
103 return 1;
104}
105
7bb48f84 106static unsigned long long get_rand_file_size(struct thread_data *td)
9c60ce64 107{
9c60ce64
JA
108 unsigned long long ret;
109 long r;
110
9c60ce64 111 r = os_random_long(&td->file_size_state);
d11a531f 112 ret = td->o.file_size_low + (unsigned long long) ((double) (td->o.file_size_high - td->o.file_size_low) * (r / (RAND_MAX + 1.0)));
2dc1bbeb 113 ret -= (ret % td->o.rw_min_bs);
9c60ce64
JA
114 return ret;
115}
116
53cdc686
JA
117static int file_size(struct thread_data *td, struct fio_file *f)
118{
119 struct stat st;
120
7bb48f84
JA
121 if (fstat(f->fd, &st) == -1) {
122 td_verror(td, errno, "fstat");
123 return 1;
124 }
53cdc686 125
7bb48f84 126 f->real_file_size = st.st_size;
53cdc686
JA
127 return 0;
128}
129
130static int bdev_size(struct thread_data *td, struct fio_file *f)
131{
132 unsigned long long bytes;
133 int r;
134
135 r = blockdev_size(f->fd, &bytes);
136 if (r) {
e1161c32 137 td_verror(td, r, "blockdev_size");
53cdc686
JA
138 return 1;
139 }
140
141 f->real_file_size = bytes;
53cdc686
JA
142 return 0;
143}
144
145static int get_file_size(struct thread_data *td, struct fio_file *f)
146{
147 int ret = 0;
148
409b3417
JA
149 if (f->flags & FIO_SIZE_KNOWN)
150 return 0;
151
7bb48f84
JA
152 if (f->filetype == FIO_TYPE_FILE)
153 ret = file_size(td, f);
154 else if (f->filetype == FIO_TYPE_BD)
53cdc686
JA
155 ret = bdev_size(td, f);
156 else
157 f->real_file_size = -1;
158
159 if (ret)
160 return ret;
161
162 if (f->file_offset > f->real_file_size) {
2dc1bbeb 163 log_err("%s: offset extends end (%Lu > %Lu)\n", td->o.name, f->file_offset, f->real_file_size);
53cdc686
JA
164 return 1;
165 }
166
409b3417 167 f->flags |= FIO_SIZE_KNOWN;
53cdc686
JA
168 return 0;
169}
170
e5b401d4
JA
171int file_invalidate_cache(struct thread_data *td, struct fio_file *f)
172{
173 int ret = 0;
174
2dc1bbeb 175 if (td->o.odirect)
b5af8293
JA
176 return 0;
177
e5b401d4
JA
178 /*
179 * FIXME: add blockdev flushing too
180 */
b5af8293 181 if (f->mmap)
7bb48f84 182 ret = madvise(f->mmap, f->io_size, MADV_DONTNEED);
467d1b6b 183 else if (f->filetype == FIO_TYPE_FILE)
7bb48f84 184 ret = fadvise(f->fd, f->file_offset, f->io_size, POSIX_FADV_DONTNEED);
7e0e25c9 185 else if (f->filetype == FIO_TYPE_BD) {
b5af8293 186 ret = blockdev_invalidate_cache(f->fd);
7e0e25c9 187 if (ret < 0 && errno == EACCES && geteuid()) {
7172cfe8
JA
188 if (!root_warn) {
189 log_err("fio: only root may flush block devices. Cache flush bypassed!\n");
190 root_warn = 1;
191 }
7e0e25c9
JA
192 ret = 0;
193 }
b5605e9d 194 } else if (f->filetype == FIO_TYPE_CHAR || f->filetype == FIO_TYPE_PIPE)
e5b401d4
JA
195 ret = 0;
196
197 if (ret < 0) {
e1161c32 198 td_verror(td, errno, "invalidate_cache");
e5b401d4
JA
199 return 1;
200 }
201
ad2da605 202 return ret;
e5b401d4
JA
203}
204
b5af8293 205void generic_close_file(struct thread_data fio_unused *td, struct fio_file *f)
53cdc686 206{
b5af8293
JA
207 close(f->fd);
208 f->fd = -1;
53cdc686
JA
209}
210
b5af8293 211int generic_open_file(struct thread_data *td, struct fio_file *f)
53cdc686 212{
66159828 213 int is_std = 0;
53cdc686
JA
214 int flags = 0;
215
66159828
JA
216 if (!strcmp(f->file_name, "-")) {
217 if (td_rw(td)) {
218 log_err("fio: can't read/write to stdin/out\n");
219 return 1;
220 }
221 is_std = 1;
ce98fa66
JA
222
223 /*
224 * move output logging to stderr, if we are writing to stdout
225 */
226 if (td_write(td))
227 f_out = stderr;
66159828
JA
228 }
229
2dc1bbeb 230 if (td->o.odirect)
2fd233b7 231 flags |= OS_O_DIRECT;
2dc1bbeb 232 if (td->o.sync_io)
2fd233b7 233 flags |= O_SYNC;
ad92396c
JA
234 if (f->filetype != FIO_TYPE_FILE)
235 flags |= O_NOATIME;
53cdc686 236
056f3459 237open_again:
660a1cb5 238 if (td_write(td)) {
4241ea8f
JA
239 assert(!read_only);
240
2fd233b7 241 flags |= O_RDWR;
53cdc686 242
af52b345 243 if (f->filetype == FIO_TYPE_FILE)
2fd233b7 244 flags |= O_CREAT;
2fd233b7 245
66159828
JA
246 if (is_std)
247 f->fd = dup(STDOUT_FILENO);
248 else
249 f->fd = open(f->file_name, flags, 0600);
2fd233b7 250 } else {
4241ea8f 251 if (f->filetype == FIO_TYPE_CHAR && !read_only)
2fd233b7
JA
252 flags |= O_RDWR;
253 else
254 flags |= O_RDONLY;
255
66159828
JA
256 if (is_std)
257 f->fd = dup(STDIN_FILENO);
258 else
259 f->fd = open(f->file_name, flags);
53cdc686
JA
260 }
261
262 if (f->fd == -1) {
e4e33258 263 char buf[FIO_VERROR_SIZE];
e1161c32
JA
264 int __e = errno;
265
056f3459
AC
266 if (errno == EPERM && (flags & O_NOATIME)) {
267 flags &= ~O_NOATIME;
268 goto open_again;
269 }
270
e4e33258
JA
271 snprintf(buf, sizeof(buf) - 1, "open(%s)", f->file_name);
272
273 td_verror(td, __e, buf);
53cdc686
JA
274 }
275
b5af8293
JA
276 if (get_file_size(td, f))
277 goto err;
278
53cdc686 279 return 0;
b5af8293
JA
280err:
281 close(f->fd);
282 return 1;
283}
284
21972cde
JA
285int open_files(struct thread_data *td)
286{
287 struct fio_file *f;
af52b345
JA
288 unsigned int i;
289 int err = 0;
21972cde
JA
290
291 for_each_file(td, f, i) {
b5af8293 292 err = td_io_open_file(td, f);
9bf27b45
JA
293 if (err) {
294 if (td->error == EMFILE) {
295 log_err("fio: limited open files to: %d\n", td->nr_open_files);
296 td->o.open_files = td->nr_open_files;
297 err = 0;
298 clear_error(td);
299 }
21972cde 300 break;
9bf27b45 301 }
b5af8293 302
2dc1bbeb 303 if (td->o.open_files == td->nr_open_files)
b5af8293 304 break;
21972cde
JA
305 }
306
7abf833d
JA
307 if (!err)
308 return 0;
309
bdb4e2e9 310 for_each_file(td, f, i)
b5af8293 311 td_io_close_file(td, f);
7abf833d 312
21972cde
JA
313 return err;
314}
315
7bb48f84
JA
316/*
317 * open/close all files, so that ->real_file_size gets set
318 */
bab3fd58 319static int get_file_sizes(struct thread_data *td)
7bb48f84
JA
320{
321 struct fio_file *f;
322 unsigned int i;
bab3fd58 323 int err = 0;
7bb48f84
JA
324
325 for_each_file(td, f, i) {
bab3fd58 326 if (td->io_ops->open_file(td, f)) {
40b44f4a
JA
327 if (td->error != ENOENT) {
328 log_err("%s\n", td->verror);
329 err = 1;
330 }
541d66d7 331 clear_error(td);
07eb79df
JA
332 } else {
333 if (td->io_ops->close_file)
334 td->io_ops->close_file(td, f);
335 }
409b3417
JA
336
337 if (f->real_file_size == -1ULL && td->o.size)
338 f->real_file_size = td->o.size / td->o.nr_files;
7bb48f84 339 }
bab3fd58
JA
340
341 return err;
7bb48f84
JA
342}
343
344/*
345 * Open the files and setup files sizes, creating files if necessary.
346 */
53cdc686
JA
347int setup_files(struct thread_data *td)
348{
7bb48f84 349 unsigned long long total_size, extend_size;
53cdc686 350 struct fio_file *f;
af52b345 351 unsigned int i;
000b0803 352 int err = 0, need_extend;
53cdc686
JA
353
354 /*
355 * if ioengine defines a setup() method, it's responsible for
7bb48f84
JA
356 * opening the files and setting f->real_file_size to indicate
357 * the valid range for that file.
53cdc686
JA
358 */
359 if (td->io_ops->setup)
7bb48f84
JA
360 err = td->io_ops->setup(td);
361 else
bab3fd58 362 err = get_file_sizes(td);
53cdc686 363
f1027063
JA
364 if (err)
365 return err;
366
0a7eb121 367 /*
7bb48f84
JA
368 * check sizes. if the files/devices do not exist and the size
369 * isn't passed to fio, abort.
0a7eb121 370 */
7bb48f84
JA
371 total_size = 0;
372 for_each_file(td, f, i) {
373 if (f->real_file_size == -1ULL)
374 total_size = -1ULL;
375 else
376 total_size += f->real_file_size;
377 }
0a7eb121 378
7bb48f84
JA
379 /*
380 * device/file sizes are zero and no size given, punt
381 */
1f809d15
JA
382 if ((!total_size || total_size == -1ULL) && !td->o.size &&
383 !(td->io_ops->flags & FIO_NOIO)) {
7bb48f84 384 log_err("%s: you need to specify size=\n", td->o.name);
e1161c32 385 td_verror(td, EINVAL, "total_file_size");
53cdc686
JA
386 return 1;
387 }
388
7bb48f84
JA
389 /*
390 * now file sizes are known, so we can set ->io_size. if size= is
391 * not given, ->io_size is just equal to ->real_file_size. if size
392 * is given, ->io_size is size / nr_files.
393 */
394 extend_size = total_size = 0;
395 need_extend = 0;
396 for_each_file(td, f, i) {
bcdedd0a
YHJT
397 f->file_offset = td->o.start_offset;
398
7bb48f84
JA
399 if (!td->o.file_size_low) {
400 /*
401 * no file size range given, file size is equal to
402 * total size divided by number of files. if that is
403 * zero, set it to the real file size.
404 */
405 f->io_size = td->o.size / td->o.nr_files;
bcdedd0a
YHJT
406 if (!f->io_size) {
407 if (f->file_offset > f->real_file_size)
408 goto err_offset;
409 f->io_size = f->real_file_size - f->file_offset;
410 }
7bb48f84
JA
411 } else if (f->real_file_size < td->o.file_size_low ||
412 f->real_file_size > td->o.file_size_high) {
bcdedd0a
YHJT
413 if (f->file_offset > td->o.file_size_low)
414 goto err_offset;
7bb48f84
JA
415 /*
416 * file size given. if it's fixed, use that. if it's a
417 * range, generate a random size in-between.
418 */
419 if (td->o.file_size_low == td->o.file_size_high)
bcdedd0a 420 f->io_size = td->o.file_size_low - f->file_offset;
7bb48f84 421 else
bcdedd0a
YHJT
422 f->io_size = get_rand_file_size(td) - f->file_offset;
423 } else if (f->file_offset > f->real_file_size)
424 goto err_offset;
425 else
426 f->io_size = f->real_file_size - f->file_offset;
53cdc686 427
7bb48f84
JA
428 if (f->io_size == -1ULL)
429 total_size = -1ULL;
430 else
431 total_size += f->io_size;
432
433 if (f->filetype == FIO_TYPE_FILE &&
bcdedd0a 434 (f->io_size + f->file_offset) > f->real_file_size &&
7bb48f84
JA
435 !(td->io_ops->flags & FIO_DISKLESSIO)) {
436 need_extend++;
bcdedd0a 437 extend_size += (f->io_size + f->file_offset);
7bb48f84 438 f->flags |= FIO_FILE_EXTEND;
bcdedd0a 439 }
7bb48f84 440 }
53cdc686 441
2298290e 442 if (!td->o.size || td->o.size > total_size)
7bb48f84 443 td->o.size = total_size;
21972cde 444
7bb48f84
JA
445 /*
446 * See if we need to extend some files
447 */
448 if (need_extend) {
449 temp_stall_ts = 1;
f627d8ae 450 log_info("%s: Laying out IO file(s) (%u file(s) / %LuMiB)\n",
7bb48f84
JA
451 td->o.name, need_extend, extend_size >> 20);
452
453 for_each_file(td, f, i) {
454 if (!(f->flags & FIO_FILE_EXTEND))
455 continue;
456
409b3417 457 assert(f->filetype == FIO_TYPE_FILE);
7bb48f84 458 f->flags &= ~FIO_FILE_EXTEND;
bcdedd0a 459 f->real_file_size = (f->io_size + f->file_offset);
7bb48f84
JA
460 err = extend_file(td, f);
461 if (err)
462 break;
463 }
464 temp_stall_ts = 0;
465 }
466
467 if (err)
468 return err;
469
470 if (!td->o.zone_size)
471 td->o.zone_size = td->o.size;
472
ea966f81
JA
473 /*
474 * iolog already set the total io size, if we read back
475 * stored entries.
476 */
477 if (!td->o.read_iolog_file)
478 td->total_io_size = td->o.size * td->o.loops;
7bb48f84 479 return 0;
bcdedd0a
YHJT
480err_offset:
481 log_err("%s: you need to specify valid offset=\n", td->o.name);
482 return 1;
53cdc686
JA
483}
484
68727076
JA
485int init_random_map(struct thread_data *td)
486{
487 int num_maps, blocks;
488 struct fio_file *f;
489 unsigned int i;
490
491 if (td->o.norandommap)
492 return 0;
493
494 for_each_file(td, f, i) {
495 blocks = (f->real_file_size + td->o.rw_min_bs - 1) / td->o.rw_min_bs;
496 num_maps = (blocks + BLOCKS_PER_MAP-1)/ BLOCKS_PER_MAP;
497 f->file_map = malloc(num_maps * sizeof(long));
498 if (!f->file_map) {
499 log_err("fio: failed allocating random map. If running a large number of jobs, try the 'norandommap' option\n");
500 return 1;
501 }
502 f->num_maps = num_maps;
503 memset(f->file_map, 0, num_maps * sizeof(long));
504 }
505
506 return 0;
507}
508
53cdc686
JA
509void close_files(struct thread_data *td)
510{
0ab8db89 511 struct fio_file *f;
af52b345 512 unsigned int i;
53cdc686 513
0ab8db89 514 for_each_file(td, f, i) {
a9b7b305 515 if (td->o.unlink && f->filetype == FIO_TYPE_FILE)
132ad46d 516 unlink(f->file_name);
bdb4e2e9 517
b5af8293 518 td_io_close_file(td, f);
b3dc7f07 519
fa1da865
JA
520 free(f->file_name);
521 f->file_name = NULL;
522
c343981b 523 if (f->file_map) {
b3dc7f07 524 free(f->file_map);
c343981b
JA
525 f->file_map = NULL;
526 }
53cdc686 527 }
b4a6a59a 528
2dc1bbeb 529 td->o.filename = NULL;
cade3ef4 530 free(td->files);
b4a6a59a 531 td->files = NULL;
2dc1bbeb 532 td->o.nr_files = 0;
53cdc686 533}
af52b345 534
e3bab463 535static void get_file_type(struct fio_file *f)
af52b345
JA
536{
537 struct stat sb;
538
66159828
JA
539 if (!strcmp(f->file_name, "-"))
540 f->filetype = FIO_TYPE_PIPE;
541 else
542 f->filetype = FIO_TYPE_FILE;
af52b345 543
e3bab463 544 if (!lstat(f->file_name, &sb)) {
af52b345
JA
545 if (S_ISBLK(sb.st_mode))
546 f->filetype = FIO_TYPE_BD;
547 else if (S_ISCHR(sb.st_mode))
548 f->filetype = FIO_TYPE_CHAR;
b5605e9d
JA
549 else if (S_ISFIFO(sb.st_mode))
550 f->filetype = FIO_TYPE_PIPE;
af52b345
JA
551 }
552}
553
f29b25a3 554int add_file(struct thread_data *td, const char *fname)
af52b345 555{
7b4e4fe5 556 int cur_files = td->files_index;
bd0ee748 557 char file_name[PATH_MAX];
af52b345 558 struct fio_file *f;
bd0ee748 559 int len = 0;
af52b345
JA
560
561 td->files = realloc(td->files, (cur_files + 1) * sizeof(*f));
562
563 f = &td->files[cur_files];
564 memset(f, 0, sizeof(*f));
565 f->fd = -1;
bd0ee748 566
07eb79df
JA
567 /*
568 * init function, io engine may not be loaded yet
569 */
570 if (td->io_ops && (td->io_ops->flags & FIO_DISKLESSIO))
571 f->real_file_size = -1ULL;
572
bd0ee748
JA
573 if (td->o.directory)
574 len = sprintf(file_name, "%s/", td->o.directory);
575
576 sprintf(file_name + len, "%s", fname);
577 f->file_name = strdup(file_name);
af52b345 578
e3bab463 579 get_file_type(f);
af52b345 580
7b4e4fe5 581 td->files_index++;
1549441c
JA
582 if (f->filetype == FIO_TYPE_FILE)
583 td->nr_normal_files++;
f29b25a3
JA
584
585 return cur_files;
af52b345 586}
0ad920e7
JA
587
588void get_file(struct fio_file *f)
589{
97af62ce 590 assert(f->flags & FIO_FILE_OPEN);
0ad920e7
JA
591 f->references++;
592}
593
594void put_file(struct thread_data *td, struct fio_file *f)
595{
596 if (!(f->flags & FIO_FILE_OPEN))
597 return;
598
599 assert(f->references);
600 if (--f->references)
601 return;
602
d424d4dd 603 if (should_fsync(td) && td->o.fsync_on_close)
ebb1415f
JA
604 fsync(f->fd);
605
0ad920e7
JA
606 if (td->io_ops->close_file)
607 td->io_ops->close_file(td, f);
1020a139 608
0ad920e7
JA
609 td->nr_open_files--;
610 f->flags &= ~FIO_FILE_OPEN;
611}
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612
613static int recurse_dir(struct thread_data *td, const char *dirname)
614{
615 struct dirent *dir;
616 int ret = 0;
617 DIR *D;
618
619 D = opendir(dirname);
620 if (!D) {
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621 char buf[FIO_VERROR_SIZE];
622
623 snprintf(buf, FIO_VERROR_SIZE - 1, "opendir(%s)", dirname);
624 td_verror(td, errno, buf);
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625 return 1;
626 }
627
628 while ((dir = readdir(D)) != NULL) {
629 char full_path[PATH_MAX];
630 struct stat sb;
631
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632 if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, ".."))
633 continue;
96d32d51 634
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635 sprintf(full_path, "%s/%s", dirname, dir->d_name);
636
637 if (lstat(full_path, &sb) == -1) {
638 if (errno != ENOENT) {
639 td_verror(td, errno, "stat");
640 return 1;
641 }
642 }
643
644 if (S_ISREG(sb.st_mode)) {
645 add_file(td, full_path);
2dc1bbeb 646 td->o.nr_files++;
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647 continue;
648 }
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649 if (!S_ISDIR(sb.st_mode))
650 continue;
bbf6b540 651
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652 if ((ret = recurse_dir(td, full_path)) != 0)
653 break;
654 }
655
656 closedir(D);
657 return ret;
658}
659
660int add_dir_files(struct thread_data *td, const char *path)
661{
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662 int ret = recurse_dir(td, path);
663
664 if (!ret)
665 log_info("fio: opendir added %d files\n", td->o.nr_files);
666
667 return ret;
bbf6b540 668}
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669
670void dup_files(struct thread_data *td, struct thread_data *org)
671{
672 struct fio_file *f;
673 unsigned int i;
674 size_t bytes;
675
676 if (!org->files)
677 return;
678
679 bytes = org->files_index * sizeof(*f);
680 td->files = malloc(bytes);
681 memcpy(td->files, org->files, bytes);
682
683 for_each_file(td, f, i) {
684 if (f->file_name)
685 f->file_name = strdup(f->file_name);
686 }
687}
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688
689/*
690 * Returns the index that matches the filename, or -1 if not there
691 */
692int get_fileno(struct thread_data *td, const char *fname)
693{
694 struct fio_file *f;
695 unsigned int i;
696
697 for_each_file(td, f, i)
698 if (!strcmp(f->file_name, fname))
699 return i;
700
701 return -1;
702}
703
704/*
705 * For log usage, where we add/open/close files automatically
706 */
707void free_release_files(struct thread_data *td)
708{
709 close_files(td);
710 td->files_index = 0;
711 td->nr_normal_files = 0;
712}