Commit | Line | Data |
---|---|---|
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 |
14 | static int root_warn; |
15 | ||
7bb48f84 | 16 | static int extend_file(struct thread_data *td, struct fio_file *f) |
25205e97 | 17 | { |
ea443657 | 18 | int r, new_layout = 0, unlink_file = 0, flags; |
25205e97 JA |
19 | unsigned long long left; |
20 | unsigned int bs; | |
21 | char *b; | |
b2a15192 | 22 | |
4241ea8f JA |
23 | if (read_only) { |
24 | log_err("fio: refusing extend of file due to read-only\n"); | |
25 | return 0; | |
26 | } | |
27 | ||
507a702f JA |
28 | /* |
29 | * check if we need to lay the file out complete again. fio | |
30 | * does that for operations involving reads, or for writes | |
31 | * where overwrite is set | |
32 | */ | |
33 | if (td_read(td) || (td_write(td) && td->o.overwrite)) | |
34 | new_layout = 1; | |
ea443657 JA |
35 | if (td_write(td) && !td->o.overwrite) |
36 | unlink_file = 1; | |
507a702f | 37 | |
6ae1f57f | 38 | if (unlink_file || new_layout) { |
982016d6 | 39 | if ((unlink(f->file_name) < 0) && (errno != ENOENT)) { |
7bb48f84 JA |
40 | td_verror(td, errno, "unlink"); |
41 | return 1; | |
42 | } | |
43 | } | |
44 | ||
507a702f JA |
45 | flags = O_WRONLY | O_CREAT; |
46 | if (new_layout) | |
47 | flags |= O_TRUNC; | |
48 | ||
ee56ad50 | 49 | dprint(FD_FILE, "open file %s, flags %x\n", f->file_name, flags); |
507a702f | 50 | f->fd = open(f->file_name, flags, 0644); |
53cdc686 | 51 | if (f->fd < 0) { |
e1161c32 | 52 | td_verror(td, errno, "open"); |
53cdc686 JA |
53 | return 1; |
54 | } | |
55 | ||
fc74ac1d SL |
56 | if (!new_layout) |
57 | goto done; | |
58 | ||
ee56ad50 JA |
59 | dprint(FD_FILE, "truncate file %s, size %llu\n", f->file_name, |
60 | f->real_file_size); | |
7bb48f84 | 61 | if (ftruncate(f->fd, f->real_file_size) == -1) { |
e1161c32 | 62 | td_verror(td, errno, "ftruncate"); |
53cdc686 JA |
63 | goto err; |
64 | } | |
65 | ||
ee56ad50 JA |
66 | dprint(FD_FILE, "fallocate file %s, size %llu\n", f->file_name, |
67 | f->real_file_size); | |
7bb48f84 | 68 | if (posix_fallocate(f->fd, 0, f->real_file_size) < 0) { |
e1161c32 | 69 | td_verror(td, errno, "posix_fallocate"); |
40f8298c JA |
70 | goto err; |
71 | } | |
72 | ||
2dc1bbeb JA |
73 | b = malloc(td->o.max_bs[DDIR_WRITE]); |
74 | memset(b, 0, td->o.max_bs[DDIR_WRITE]); | |
53cdc686 | 75 | |
7bb48f84 | 76 | left = f->real_file_size; |
53cdc686 | 77 | while (left && !td->terminate) { |
2dc1bbeb | 78 | bs = td->o.max_bs[DDIR_WRITE]; |
53cdc686 JA |
79 | if (bs > left) |
80 | bs = left; | |
81 | ||
82 | r = write(f->fd, b, bs); | |
83 | ||
84 | if (r == (int) bs) { | |
85 | left -= bs; | |
86 | continue; | |
87 | } else { | |
88 | if (r < 0) | |
e1161c32 | 89 | td_verror(td, errno, "write"); |
53cdc686 | 90 | else |
e1161c32 | 91 | td_verror(td, EIO, "write"); |
53cdc686 JA |
92 | |
93 | break; | |
94 | } | |
95 | } | |
96 | ||
97 | if (td->terminate) | |
98 | unlink(f->file_name); | |
98e1ac4e JA |
99 | else if (td->o.create_fsync) { |
100 | if (fsync(f->fd) < 0) { | |
101 | td_verror(td, errno, "fsync"); | |
102 | goto err; | |
103 | } | |
104 | } | |
53cdc686 JA |
105 | |
106 | free(b); | |
507a702f | 107 | done: |
53cdc686 JA |
108 | close(f->fd); |
109 | f->fd = -1; | |
110 | return 0; | |
111 | err: | |
112 | close(f->fd); | |
113 | f->fd = -1; | |
114 | return 1; | |
115 | } | |
116 | ||
7bb48f84 | 117 | static unsigned long long get_rand_file_size(struct thread_data *td) |
9c60ce64 | 118 | { |
9c60ce64 JA |
119 | unsigned long long ret; |
120 | long r; | |
121 | ||
9c60ce64 | 122 | r = os_random_long(&td->file_size_state); |
d11a531f | 123 | 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 | 124 | ret -= (ret % td->o.rw_min_bs); |
9c60ce64 JA |
125 | return ret; |
126 | } | |
127 | ||
53cdc686 JA |
128 | static int file_size(struct thread_data *td, struct fio_file *f) |
129 | { | |
130 | struct stat st; | |
131 | ||
7bb48f84 JA |
132 | if (fstat(f->fd, &st) == -1) { |
133 | td_verror(td, errno, "fstat"); | |
134 | return 1; | |
135 | } | |
53cdc686 | 136 | |
7bb48f84 | 137 | f->real_file_size = st.st_size; |
53cdc686 JA |
138 | return 0; |
139 | } | |
140 | ||
141 | static int bdev_size(struct thread_data *td, struct fio_file *f) | |
142 | { | |
143 | unsigned long long bytes; | |
144 | int r; | |
145 | ||
146 | r = blockdev_size(f->fd, &bytes); | |
147 | if (r) { | |
e1161c32 | 148 | td_verror(td, r, "blockdev_size"); |
53cdc686 JA |
149 | return 1; |
150 | } | |
151 | ||
152 | f->real_file_size = bytes; | |
53cdc686 JA |
153 | return 0; |
154 | } | |
155 | ||
156 | static int get_file_size(struct thread_data *td, struct fio_file *f) | |
157 | { | |
158 | int ret = 0; | |
159 | ||
409b3417 JA |
160 | if (f->flags & FIO_SIZE_KNOWN) |
161 | return 0; | |
162 | ||
7bb48f84 JA |
163 | if (f->filetype == FIO_TYPE_FILE) |
164 | ret = file_size(td, f); | |
165 | else if (f->filetype == FIO_TYPE_BD) | |
53cdc686 JA |
166 | ret = bdev_size(td, f); |
167 | else | |
168 | f->real_file_size = -1; | |
169 | ||
170 | if (ret) | |
171 | return ret; | |
172 | ||
173 | if (f->file_offset > f->real_file_size) { | |
2dc1bbeb | 174 | log_err("%s: offset extends end (%Lu > %Lu)\n", td->o.name, f->file_offset, f->real_file_size); |
53cdc686 JA |
175 | return 1; |
176 | } | |
177 | ||
409b3417 | 178 | f->flags |= FIO_SIZE_KNOWN; |
53cdc686 JA |
179 | return 0; |
180 | } | |
181 | ||
e5b401d4 JA |
182 | int file_invalidate_cache(struct thread_data *td, struct fio_file *f) |
183 | { | |
184 | int ret = 0; | |
185 | ||
ee56ad50 JA |
186 | dprint(FD_IO, "invalidate cache (%d)\n", td->o.odirect); |
187 | ||
2dc1bbeb | 188 | if (td->o.odirect) |
b5af8293 JA |
189 | return 0; |
190 | ||
e5b401d4 JA |
191 | /* |
192 | * FIXME: add blockdev flushing too | |
193 | */ | |
b5af8293 | 194 | if (f->mmap) |
7bb48f84 | 195 | ret = madvise(f->mmap, f->io_size, MADV_DONTNEED); |
467d1b6b | 196 | else if (f->filetype == FIO_TYPE_FILE) |
7bb48f84 | 197 | ret = fadvise(f->fd, f->file_offset, f->io_size, POSIX_FADV_DONTNEED); |
7e0e25c9 | 198 | else if (f->filetype == FIO_TYPE_BD) { |
b5af8293 | 199 | ret = blockdev_invalidate_cache(f->fd); |
7e0e25c9 | 200 | if (ret < 0 && errno == EACCES && geteuid()) { |
7172cfe8 JA |
201 | if (!root_warn) { |
202 | log_err("fio: only root may flush block devices. Cache flush bypassed!\n"); | |
203 | root_warn = 1; | |
204 | } | |
7e0e25c9 JA |
205 | ret = 0; |
206 | } | |
b5605e9d | 207 | } else if (f->filetype == FIO_TYPE_CHAR || f->filetype == FIO_TYPE_PIPE) |
e5b401d4 JA |
208 | ret = 0; |
209 | ||
210 | if (ret < 0) { | |
e1161c32 | 211 | td_verror(td, errno, "invalidate_cache"); |
e5b401d4 JA |
212 | return 1; |
213 | } | |
214 | ||
ad2da605 | 215 | return ret; |
e5b401d4 JA |
216 | } |
217 | ||
6977bcd0 | 218 | int generic_close_file(struct thread_data fio_unused *td, struct fio_file *f) |
53cdc686 | 219 | { |
6977bcd0 JA |
220 | int ret = 0; |
221 | ||
ee56ad50 | 222 | dprint(FD_FILE, "fd close %s\n", f->file_name); |
4906e0b5 JA |
223 | |
224 | remove_file_hash(f); | |
225 | ||
6977bcd0 JA |
226 | if (close(f->fd) < 0) |
227 | ret = errno; | |
228 | ||
b5af8293 | 229 | f->fd = -1; |
6977bcd0 | 230 | return ret; |
53cdc686 JA |
231 | } |
232 | ||
4d4e80f2 | 233 | static int file_lookup_open(struct fio_file *f, int flags) |
53cdc686 | 234 | { |
29c1349f | 235 | struct fio_file *__f; |
4d4e80f2 JA |
236 | int from_hash; |
237 | ||
238 | __f = lookup_file_hash(f->file_name); | |
239 | if (__f) { | |
9efef3c4 | 240 | dprint(FD_FILE, "found file in hash %s\n", f->file_name); |
4d4e80f2 JA |
241 | /* |
242 | * racy, need the __f->lock locked | |
243 | */ | |
244 | f->lock = __f->lock; | |
245 | f->lock_owner = __f->lock_owner; | |
246 | f->lock_batch = __f->lock_batch; | |
247 | f->lock_ddir = __f->lock_ddir; | |
248 | f->fd = dup(__f->fd); | |
249 | f->references++; | |
250 | from_hash = 1; | |
251 | } else { | |
9efef3c4 | 252 | dprint(FD_FILE, "file not found in hash %s\n", f->file_name); |
4d4e80f2 JA |
253 | f->fd = open(f->file_name, flags, 0600); |
254 | from_hash = 0; | |
255 | } | |
256 | ||
257 | return from_hash; | |
258 | } | |
259 | ||
260 | int generic_open_file(struct thread_data *td, struct fio_file *f) | |
261 | { | |
66159828 | 262 | int is_std = 0; |
53cdc686 | 263 | int flags = 0; |
29c1349f | 264 | int from_hash = 0; |
53cdc686 | 265 | |
ee56ad50 JA |
266 | dprint(FD_FILE, "fd open %s\n", f->file_name); |
267 | ||
66159828 JA |
268 | if (!strcmp(f->file_name, "-")) { |
269 | if (td_rw(td)) { | |
270 | log_err("fio: can't read/write to stdin/out\n"); | |
271 | return 1; | |
272 | } | |
273 | is_std = 1; | |
ce98fa66 JA |
274 | |
275 | /* | |
276 | * move output logging to stderr, if we are writing to stdout | |
277 | */ | |
278 | if (td_write(td)) | |
279 | f_out = stderr; | |
66159828 JA |
280 | } |
281 | ||
2dc1bbeb | 282 | if (td->o.odirect) |
2fd233b7 | 283 | flags |= OS_O_DIRECT; |
2dc1bbeb | 284 | if (td->o.sync_io) |
2fd233b7 | 285 | flags |= O_SYNC; |
ad92396c JA |
286 | if (f->filetype != FIO_TYPE_FILE) |
287 | flags |= O_NOATIME; | |
53cdc686 | 288 | |
056f3459 | 289 | open_again: |
660a1cb5 | 290 | if (td_write(td)) { |
4241ea8f JA |
291 | assert(!read_only); |
292 | ||
2fd233b7 | 293 | flags |= O_RDWR; |
53cdc686 | 294 | |
af52b345 | 295 | if (f->filetype == FIO_TYPE_FILE) |
2fd233b7 | 296 | flags |= O_CREAT; |
2fd233b7 | 297 | |
66159828 JA |
298 | if (is_std) |
299 | f->fd = dup(STDOUT_FILENO); | |
4d4e80f2 JA |
300 | else |
301 | from_hash = file_lookup_open(f, flags); | |
2fd233b7 | 302 | } else { |
4241ea8f | 303 | if (f->filetype == FIO_TYPE_CHAR && !read_only) |
2fd233b7 JA |
304 | flags |= O_RDWR; |
305 | else | |
306 | flags |= O_RDONLY; | |
307 | ||
66159828 JA |
308 | if (is_std) |
309 | f->fd = dup(STDIN_FILENO); | |
4d4e80f2 JA |
310 | else |
311 | from_hash = file_lookup_open(f, flags); | |
53cdc686 JA |
312 | } |
313 | ||
314 | if (f->fd == -1) { | |
e4e33258 | 315 | char buf[FIO_VERROR_SIZE]; |
e1161c32 JA |
316 | int __e = errno; |
317 | ||
056f3459 AC |
318 | if (errno == EPERM && (flags & O_NOATIME)) { |
319 | flags &= ~O_NOATIME; | |
320 | goto open_again; | |
321 | } | |
322 | ||
e4e33258 JA |
323 | snprintf(buf, sizeof(buf) - 1, "open(%s)", f->file_name); |
324 | ||
325 | td_verror(td, __e, buf); | |
53cdc686 JA |
326 | } |
327 | ||
b5af8293 JA |
328 | if (get_file_size(td, f)) |
329 | goto err; | |
330 | ||
29c1349f JA |
331 | if (!from_hash && f->fd != -1) { |
332 | if (add_file_hash(f)) { | |
333 | int ret; | |
334 | ||
335 | /* | |
336 | * OK to ignore, we haven't done anything with it | |
337 | */ | |
338 | ret = generic_close_file(td, f); | |
339 | goto open_again; | |
340 | } | |
341 | } | |
4906e0b5 | 342 | |
53cdc686 | 343 | return 0; |
b5af8293 JA |
344 | err: |
345 | close(f->fd); | |
346 | return 1; | |
347 | } | |
348 | ||
21972cde JA |
349 | int open_files(struct thread_data *td) |
350 | { | |
351 | struct fio_file *f; | |
af52b345 JA |
352 | unsigned int i; |
353 | int err = 0; | |
21972cde | 354 | |
ee56ad50 JA |
355 | dprint(FD_FILE, "open files\n"); |
356 | ||
21972cde | 357 | for_each_file(td, f, i) { |
b5af8293 | 358 | err = td_io_open_file(td, f); |
9bf27b45 JA |
359 | if (err) { |
360 | if (td->error == EMFILE) { | |
361 | log_err("fio: limited open files to: %d\n", td->nr_open_files); | |
362 | td->o.open_files = td->nr_open_files; | |
363 | err = 0; | |
364 | clear_error(td); | |
365 | } | |
21972cde | 366 | break; |
9bf27b45 | 367 | } |
b5af8293 | 368 | |
2dc1bbeb | 369 | if (td->o.open_files == td->nr_open_files) |
b5af8293 | 370 | break; |
21972cde JA |
371 | } |
372 | ||
7abf833d JA |
373 | if (!err) |
374 | return 0; | |
375 | ||
bdb4e2e9 | 376 | for_each_file(td, f, i) |
b5af8293 | 377 | td_io_close_file(td, f); |
7abf833d | 378 | |
21972cde JA |
379 | return err; |
380 | } | |
381 | ||
7bb48f84 JA |
382 | /* |
383 | * open/close all files, so that ->real_file_size gets set | |
384 | */ | |
bab3fd58 | 385 | static int get_file_sizes(struct thread_data *td) |
7bb48f84 JA |
386 | { |
387 | struct fio_file *f; | |
388 | unsigned int i; | |
bab3fd58 | 389 | int err = 0; |
7bb48f84 JA |
390 | |
391 | for_each_file(td, f, i) { | |
9efef3c4 JA |
392 | dprint(FD_FILE, "get file size for %p/%d/%p\n", f, i, f->file_name); |
393 | ||
bab3fd58 | 394 | if (td->io_ops->open_file(td, f)) { |
40b44f4a JA |
395 | if (td->error != ENOENT) { |
396 | log_err("%s\n", td->verror); | |
397 | err = 1; | |
398 | } | |
541d66d7 | 399 | clear_error(td); |
07eb79df JA |
400 | } else { |
401 | if (td->io_ops->close_file) | |
402 | td->io_ops->close_file(td, f); | |
403 | } | |
409b3417 JA |
404 | |
405 | if (f->real_file_size == -1ULL && td->o.size) | |
406 | f->real_file_size = td->o.size / td->o.nr_files; | |
7bb48f84 | 407 | } |
bab3fd58 JA |
408 | |
409 | return err; | |
7bb48f84 JA |
410 | } |
411 | ||
412 | /* | |
413 | * Open the files and setup files sizes, creating files if necessary. | |
414 | */ | |
53cdc686 JA |
415 | int setup_files(struct thread_data *td) |
416 | { | |
7bb48f84 | 417 | unsigned long long total_size, extend_size; |
53cdc686 | 418 | struct fio_file *f; |
af52b345 | 419 | unsigned int i; |
000b0803 | 420 | int err = 0, need_extend; |
53cdc686 | 421 | |
ee56ad50 JA |
422 | dprint(FD_FILE, "setup files\n"); |
423 | ||
53cdc686 JA |
424 | /* |
425 | * if ioengine defines a setup() method, it's responsible for | |
7bb48f84 JA |
426 | * opening the files and setting f->real_file_size to indicate |
427 | * the valid range for that file. | |
53cdc686 JA |
428 | */ |
429 | if (td->io_ops->setup) | |
7bb48f84 JA |
430 | err = td->io_ops->setup(td); |
431 | else | |
bab3fd58 | 432 | err = get_file_sizes(td); |
53cdc686 | 433 | |
f1027063 JA |
434 | if (err) |
435 | return err; | |
436 | ||
0a7eb121 | 437 | /* |
7bb48f84 JA |
438 | * check sizes. if the files/devices do not exist and the size |
439 | * isn't passed to fio, abort. | |
0a7eb121 | 440 | */ |
7bb48f84 JA |
441 | total_size = 0; |
442 | for_each_file(td, f, i) { | |
443 | if (f->real_file_size == -1ULL) | |
444 | total_size = -1ULL; | |
445 | else | |
446 | total_size += f->real_file_size; | |
447 | } | |
0a7eb121 | 448 | |
7bb48f84 JA |
449 | /* |
450 | * device/file sizes are zero and no size given, punt | |
451 | */ | |
1f809d15 | 452 | if ((!total_size || total_size == -1ULL) && !td->o.size && |
aa31f1f1 | 453 | !(td->io_ops->flags & FIO_NOIO) && !td->o.fill_device) { |
7bb48f84 | 454 | log_err("%s: you need to specify size=\n", td->o.name); |
e1161c32 | 455 | td_verror(td, EINVAL, "total_file_size"); |
53cdc686 JA |
456 | return 1; |
457 | } | |
458 | ||
7bb48f84 JA |
459 | /* |
460 | * now file sizes are known, so we can set ->io_size. if size= is | |
461 | * not given, ->io_size is just equal to ->real_file_size. if size | |
462 | * is given, ->io_size is size / nr_files. | |
463 | */ | |
464 | extend_size = total_size = 0; | |
465 | need_extend = 0; | |
466 | for_each_file(td, f, i) { | |
bcdedd0a YHJT |
467 | f->file_offset = td->o.start_offset; |
468 | ||
7bb48f84 JA |
469 | if (!td->o.file_size_low) { |
470 | /* | |
471 | * no file size range given, file size is equal to | |
472 | * total size divided by number of files. if that is | |
473 | * zero, set it to the real file size. | |
474 | */ | |
475 | f->io_size = td->o.size / td->o.nr_files; | |
65bdb10a | 476 | if (!f->io_size) |
273f8c91 | 477 | f->io_size = f->real_file_size - f->file_offset; |
7bb48f84 JA |
478 | } else if (f->real_file_size < td->o.file_size_low || |
479 | f->real_file_size > td->o.file_size_high) { | |
bcdedd0a YHJT |
480 | if (f->file_offset > td->o.file_size_low) |
481 | goto err_offset; | |
7bb48f84 JA |
482 | /* |
483 | * file size given. if it's fixed, use that. if it's a | |
484 | * range, generate a random size in-between. | |
485 | */ | |
486 | if (td->o.file_size_low == td->o.file_size_high) | |
bcdedd0a | 487 | f->io_size = td->o.file_size_low - f->file_offset; |
7bb48f84 | 488 | else |
bcdedd0a | 489 | f->io_size = get_rand_file_size(td) - f->file_offset; |
65bdb10a | 490 | } else |
bcdedd0a | 491 | f->io_size = f->real_file_size - f->file_offset; |
53cdc686 | 492 | |
7bb48f84 JA |
493 | if (f->io_size == -1ULL) |
494 | total_size = -1ULL; | |
495 | else | |
496 | total_size += f->io_size; | |
497 | ||
498 | if (f->filetype == FIO_TYPE_FILE && | |
bcdedd0a | 499 | (f->io_size + f->file_offset) > f->real_file_size && |
7bb48f84 JA |
500 | !(td->io_ops->flags & FIO_DISKLESSIO)) { |
501 | need_extend++; | |
bcdedd0a | 502 | extend_size += (f->io_size + f->file_offset); |
7bb48f84 | 503 | f->flags |= FIO_FILE_EXTEND; |
bcdedd0a | 504 | } |
7bb48f84 | 505 | } |
53cdc686 | 506 | |
2298290e | 507 | if (!td->o.size || td->o.size > total_size) |
7bb48f84 | 508 | td->o.size = total_size; |
21972cde | 509 | |
7bb48f84 JA |
510 | /* |
511 | * See if we need to extend some files | |
512 | */ | |
513 | if (need_extend) { | |
514 | temp_stall_ts = 1; | |
f627d8ae | 515 | log_info("%s: Laying out IO file(s) (%u file(s) / %LuMiB)\n", |
7bb48f84 JA |
516 | td->o.name, need_extend, extend_size >> 20); |
517 | ||
518 | for_each_file(td, f, i) { | |
519 | if (!(f->flags & FIO_FILE_EXTEND)) | |
520 | continue; | |
521 | ||
409b3417 | 522 | assert(f->filetype == FIO_TYPE_FILE); |
7bb48f84 | 523 | f->flags &= ~FIO_FILE_EXTEND; |
bcdedd0a | 524 | f->real_file_size = (f->io_size + f->file_offset); |
7bb48f84 JA |
525 | err = extend_file(td, f); |
526 | if (err) | |
527 | break; | |
528 | } | |
529 | temp_stall_ts = 0; | |
530 | } | |
531 | ||
532 | if (err) | |
533 | return err; | |
534 | ||
535 | if (!td->o.zone_size) | |
536 | td->o.zone_size = td->o.size; | |
537 | ||
ea966f81 JA |
538 | /* |
539 | * iolog already set the total io size, if we read back | |
540 | * stored entries. | |
541 | */ | |
542 | if (!td->o.read_iolog_file) | |
543 | td->total_io_size = td->o.size * td->o.loops; | |
7bb48f84 | 544 | return 0; |
bcdedd0a YHJT |
545 | err_offset: |
546 | log_err("%s: you need to specify valid offset=\n", td->o.name); | |
547 | return 1; | |
53cdc686 JA |
548 | } |
549 | ||
68727076 JA |
550 | int init_random_map(struct thread_data *td) |
551 | { | |
509eab12 | 552 | unsigned long long blocks, num_maps; |
68727076 JA |
553 | struct fio_file *f; |
554 | unsigned int i; | |
555 | ||
de8dd119 | 556 | if (td->o.norandommap || !td_random(td)) |
68727076 JA |
557 | return 0; |
558 | ||
559 | for_each_file(td, f, i) { | |
509eab12 JA |
560 | blocks = (f->real_file_size + td->o.rw_min_bs - 1) / (unsigned long long) td->o.rw_min_bs; |
561 | num_maps = (blocks + BLOCKS_PER_MAP-1)/ (unsigned long long) BLOCKS_PER_MAP; | |
f17c4392 | 562 | f->file_map = smalloc(num_maps * sizeof(long)); |
68727076 JA |
563 | if (!f->file_map) { |
564 | log_err("fio: failed allocating random map. If running a large number of jobs, try the 'norandommap' option\n"); | |
565 | return 1; | |
566 | } | |
567 | f->num_maps = num_maps; | |
68727076 JA |
568 | } |
569 | ||
570 | return 0; | |
571 | } | |
572 | ||
53cdc686 JA |
573 | void close_files(struct thread_data *td) |
574 | { | |
0ab8db89 | 575 | struct fio_file *f; |
af52b345 | 576 | unsigned int i; |
53cdc686 | 577 | |
24ffd2c2 JA |
578 | for_each_file(td, f, i) |
579 | td_io_close_file(td, f); | |
580 | } | |
581 | ||
582 | void close_and_free_files(struct thread_data *td) | |
583 | { | |
584 | struct fio_file *f; | |
585 | unsigned int i; | |
586 | ||
ee56ad50 JA |
587 | dprint(FD_FILE, "close files\n"); |
588 | ||
0ab8db89 | 589 | for_each_file(td, f, i) { |
a9b7b305 | 590 | if (td->o.unlink && f->filetype == FIO_TYPE_FILE) |
132ad46d | 591 | unlink(f->file_name); |
bdb4e2e9 | 592 | |
b5af8293 | 593 | td_io_close_file(td, f); |
b3dc7f07 | 594 | |
f17c4392 | 595 | sfree(f->file_name); |
fa1da865 JA |
596 | f->file_name = NULL; |
597 | ||
c343981b | 598 | if (f->file_map) { |
f17c4392 | 599 | sfree(f->file_map); |
c343981b JA |
600 | f->file_map = NULL; |
601 | } | |
78d99e6a | 602 | sfree(f); |
53cdc686 | 603 | } |
b4a6a59a | 604 | |
2dc1bbeb | 605 | td->o.filename = NULL; |
cade3ef4 | 606 | free(td->files); |
9efef3c4 | 607 | td->files_index = 0; |
b4a6a59a | 608 | td->files = NULL; |
2dc1bbeb | 609 | td->o.nr_files = 0; |
53cdc686 | 610 | } |
af52b345 | 611 | |
e3bab463 | 612 | static void get_file_type(struct fio_file *f) |
af52b345 JA |
613 | { |
614 | struct stat sb; | |
615 | ||
66159828 JA |
616 | if (!strcmp(f->file_name, "-")) |
617 | f->filetype = FIO_TYPE_PIPE; | |
618 | else | |
619 | f->filetype = FIO_TYPE_FILE; | |
af52b345 | 620 | |
e3bab463 | 621 | if (!lstat(f->file_name, &sb)) { |
af52b345 JA |
622 | if (S_ISBLK(sb.st_mode)) |
623 | f->filetype = FIO_TYPE_BD; | |
624 | else if (S_ISCHR(sb.st_mode)) | |
625 | f->filetype = FIO_TYPE_CHAR; | |
b5605e9d JA |
626 | else if (S_ISFIFO(sb.st_mode)) |
627 | f->filetype = FIO_TYPE_PIPE; | |
af52b345 JA |
628 | } |
629 | } | |
630 | ||
f29b25a3 | 631 | int add_file(struct thread_data *td, const char *fname) |
af52b345 | 632 | { |
7b4e4fe5 | 633 | int cur_files = td->files_index; |
bd0ee748 | 634 | char file_name[PATH_MAX]; |
af52b345 | 635 | struct fio_file *f; |
bd0ee748 | 636 | int len = 0; |
af52b345 | 637 | |
ee56ad50 JA |
638 | dprint(FD_FILE, "add file %s\n", fname); |
639 | ||
f17c4392 | 640 | f = smalloc(sizeof(*f)); |
af52b345 | 641 | f->fd = -1; |
bd0ee748 | 642 | |
9efef3c4 | 643 | dprint(FD_FILE, "resize file array to %d files\n", cur_files + 1); |
126d65c6 | 644 | |
9efef3c4 | 645 | td->files = realloc(td->files, (cur_files + 1) * sizeof(f)); |
126d65c6 JA |
646 | td->files[cur_files] = f; |
647 | ||
07eb79df JA |
648 | /* |
649 | * init function, io engine may not be loaded yet | |
650 | */ | |
651 | if (td->io_ops && (td->io_ops->flags & FIO_DISKLESSIO)) | |
652 | f->real_file_size = -1ULL; | |
653 | ||
bd0ee748 JA |
654 | if (td->o.directory) |
655 | len = sprintf(file_name, "%s/", td->o.directory); | |
656 | ||
657 | sprintf(file_name + len, "%s", fname); | |
f17c4392 | 658 | f->file_name = smalloc_strdup(file_name); |
af52b345 | 659 | |
e3bab463 | 660 | get_file_type(f); |
af52b345 | 661 | |
4d4e80f2 JA |
662 | switch (td->o.file_lock_mode) { |
663 | case FILE_LOCK_NONE: | |
664 | break; | |
665 | case FILE_LOCK_READWRITE: | |
666 | f->lock = fio_mutex_rw_init(); | |
667 | break; | |
668 | case FILE_LOCK_EXCLUSIVE: | |
669 | f->lock = fio_mutex_init(1); | |
670 | break; | |
671 | default: | |
672 | log_err("fio: unknown lock mode: %d\n", td->o.file_lock_mode); | |
673 | assert(0); | |
674 | } | |
29c1349f | 675 | |
7b4e4fe5 | 676 | td->files_index++; |
1549441c JA |
677 | if (f->filetype == FIO_TYPE_FILE) |
678 | td->nr_normal_files++; | |
f29b25a3 | 679 | |
9efef3c4 JA |
680 | dprint(FD_FILE, "file %p \"%s\" added at %d\n", f, f->file_name, cur_files); |
681 | ||
f29b25a3 | 682 | return cur_files; |
af52b345 | 683 | } |
0ad920e7 JA |
684 | |
685 | void get_file(struct fio_file *f) | |
686 | { | |
8172fe97 | 687 | dprint(FD_FILE, "get file %s, ref=%d\n", f->file_name, f->references); |
97af62ce | 688 | assert(f->flags & FIO_FILE_OPEN); |
0ad920e7 JA |
689 | f->references++; |
690 | } | |
691 | ||
6977bcd0 | 692 | int put_file(struct thread_data *td, struct fio_file *f) |
0ad920e7 | 693 | { |
98e1ac4e | 694 | int f_ret = 0, ret = 0; |
6977bcd0 | 695 | |
8172fe97 | 696 | dprint(FD_FILE, "put file %s, ref=%d\n", f->file_name, f->references); |
ee56ad50 | 697 | |
0ad920e7 | 698 | if (!(f->flags & FIO_FILE_OPEN)) |
6977bcd0 | 699 | return 0; |
0ad920e7 JA |
700 | |
701 | assert(f->references); | |
702 | if (--f->references) | |
6977bcd0 | 703 | return 0; |
0ad920e7 | 704 | |
d424d4dd | 705 | if (should_fsync(td) && td->o.fsync_on_close) |
98e1ac4e | 706 | f_ret = fsync(f->fd); |
ebb1415f | 707 | |
0ad920e7 | 708 | if (td->io_ops->close_file) |
6977bcd0 | 709 | ret = td->io_ops->close_file(td, f); |
1020a139 | 710 | |
98e1ac4e JA |
711 | if (!ret) |
712 | ret = !f_ret; | |
713 | ||
0ad920e7 JA |
714 | td->nr_open_files--; |
715 | f->flags &= ~FIO_FILE_OPEN; | |
6977bcd0 | 716 | return ret; |
0ad920e7 | 717 | } |
bbf6b540 | 718 | |
4d4e80f2 | 719 | void lock_file(struct thread_data *td, struct fio_file *f, enum fio_ddir ddir) |
b2bd2bd9 | 720 | { |
4d4e80f2 JA |
721 | if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE) |
722 | return; | |
29c1349f | 723 | |
4d4e80f2 JA |
724 | if (f->lock_owner == td && f->lock_batch--) |
725 | return; | |
726 | ||
727 | if (td->o.file_lock_mode == FILE_LOCK_READWRITE) { | |
728 | if (ddir == DDIR_READ) | |
729 | fio_mutex_down_read(f->lock); | |
730 | else | |
731 | fio_mutex_down_write(f->lock); | |
732 | } else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE) | |
733 | fio_mutex_down(f->lock); | |
734 | ||
735 | f->lock_owner = td; | |
736 | f->lock_batch = td->o.lockfile_batch; | |
737 | f->lock_ddir = ddir; | |
b2bd2bd9 JA |
738 | } |
739 | ||
4d4e80f2 | 740 | void unlock_file(struct thread_data *td, struct fio_file *f) |
b2bd2bd9 | 741 | { |
4d4e80f2 JA |
742 | if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE) |
743 | return; | |
744 | if (f->lock_batch) | |
745 | return; | |
746 | ||
747 | if (td->o.file_lock_mode == FILE_LOCK_READWRITE) { | |
748 | const int is_read = f->lock_ddir == DDIR_READ; | |
749 | int val = fio_mutex_getval(f->lock); | |
29c1349f | 750 | |
4d4e80f2 JA |
751 | if ((is_read && val == 1) || (!is_read && val == -1)) |
752 | f->lock_owner = NULL; | |
29c1349f | 753 | |
4d4e80f2 JA |
754 | if (is_read) |
755 | fio_mutex_up_read(f->lock); | |
756 | else | |
757 | fio_mutex_up_write(f->lock); | |
758 | } else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE) { | |
759 | int val = fio_mutex_getval(f->lock); | |
760 | ||
761 | if (val == 0) | |
762 | f->lock_owner = NULL; | |
763 | ||
764 | fio_mutex_up(f->lock); | |
29c1349f | 765 | } |
b2bd2bd9 JA |
766 | } |
767 | ||
4d4e80f2 JA |
768 | void unlock_file_all(struct thread_data *td, struct fio_file *f) |
769 | { | |
770 | if (f->lock_owner != td) | |
771 | return; | |
772 | ||
773 | f->lock_batch = 0; | |
774 | unlock_file(td, f); | |
775 | } | |
776 | ||
bbf6b540 JA |
777 | static int recurse_dir(struct thread_data *td, const char *dirname) |
778 | { | |
779 | struct dirent *dir; | |
780 | int ret = 0; | |
781 | DIR *D; | |
782 | ||
783 | D = opendir(dirname); | |
784 | if (!D) { | |
0ddb270c JA |
785 | char buf[FIO_VERROR_SIZE]; |
786 | ||
787 | snprintf(buf, FIO_VERROR_SIZE - 1, "opendir(%s)", dirname); | |
788 | td_verror(td, errno, buf); | |
bbf6b540 JA |
789 | return 1; |
790 | } | |
791 | ||
792 | while ((dir = readdir(D)) != NULL) { | |
793 | char full_path[PATH_MAX]; | |
794 | struct stat sb; | |
795 | ||
e85b2b83 JA |
796 | if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, "..")) |
797 | continue; | |
96d32d51 | 798 | |
bbf6b540 JA |
799 | sprintf(full_path, "%s/%s", dirname, dir->d_name); |
800 | ||
801 | if (lstat(full_path, &sb) == -1) { | |
802 | if (errno != ENOENT) { | |
803 | td_verror(td, errno, "stat"); | |
804 | return 1; | |
805 | } | |
806 | } | |
807 | ||
808 | if (S_ISREG(sb.st_mode)) { | |
809 | add_file(td, full_path); | |
2dc1bbeb | 810 | td->o.nr_files++; |
bbf6b540 JA |
811 | continue; |
812 | } | |
0ddb270c JA |
813 | if (!S_ISDIR(sb.st_mode)) |
814 | continue; | |
bbf6b540 | 815 | |
bbf6b540 JA |
816 | if ((ret = recurse_dir(td, full_path)) != 0) |
817 | break; | |
818 | } | |
819 | ||
820 | closedir(D); | |
821 | return ret; | |
822 | } | |
823 | ||
824 | int add_dir_files(struct thread_data *td, const char *path) | |
825 | { | |
0ddb270c JA |
826 | int ret = recurse_dir(td, path); |
827 | ||
828 | if (!ret) | |
829 | log_info("fio: opendir added %d files\n", td->o.nr_files); | |
830 | ||
831 | return ret; | |
bbf6b540 | 832 | } |
cade3ef4 JA |
833 | |
834 | void dup_files(struct thread_data *td, struct thread_data *org) | |
835 | { | |
836 | struct fio_file *f; | |
837 | unsigned int i; | |
9efef3c4 JA |
838 | |
839 | dprint(FD_FILE, "dup files: %d\n", org->files_index); | |
cade3ef4 JA |
840 | |
841 | if (!org->files) | |
842 | return; | |
843 | ||
9efef3c4 | 844 | td->files = malloc(org->files_index * sizeof(f)); |
cade3ef4 | 845 | |
9efef3c4 | 846 | for_each_file(org, f, i) { |
b0fe421a JA |
847 | struct fio_file *__f; |
848 | ||
f17c4392 | 849 | __f = smalloc(sizeof(*__f)); |
b0fe421a | 850 | |
cade3ef4 | 851 | if (f->file_name) |
f17c4392 | 852 | __f->file_name = smalloc_strdup(f->file_name); |
b0fe421a JA |
853 | |
854 | td->files[i] = __f; | |
cade3ef4 JA |
855 | } |
856 | } | |
f29b25a3 JA |
857 | |
858 | /* | |
859 | * Returns the index that matches the filename, or -1 if not there | |
860 | */ | |
861 | int get_fileno(struct thread_data *td, const char *fname) | |
862 | { | |
863 | struct fio_file *f; | |
864 | unsigned int i; | |
865 | ||
866 | for_each_file(td, f, i) | |
867 | if (!strcmp(f->file_name, fname)) | |
868 | return i; | |
869 | ||
870 | return -1; | |
871 | } | |
872 | ||
873 | /* | |
874 | * For log usage, where we add/open/close files automatically | |
875 | */ | |
876 | void free_release_files(struct thread_data *td) | |
877 | { | |
878 | close_files(td); | |
879 | td->files_index = 0; | |
880 | td->nr_normal_files = 0; | |
881 | } |