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