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 | ||
b5af8293 | 229 | int generic_open_file(struct thread_data *td, struct fio_file *f) |
53cdc686 | 230 | { |
29c1349f | 231 | struct fio_file *__f; |
66159828 | 232 | int is_std = 0; |
53cdc686 | 233 | int flags = 0; |
29c1349f | 234 | int from_hash = 0; |
53cdc686 | 235 | |
ee56ad50 JA |
236 | dprint(FD_FILE, "fd open %s\n", f->file_name); |
237 | ||
66159828 JA |
238 | if (!strcmp(f->file_name, "-")) { |
239 | if (td_rw(td)) { | |
240 | log_err("fio: can't read/write to stdin/out\n"); | |
241 | return 1; | |
242 | } | |
243 | is_std = 1; | |
ce98fa66 JA |
244 | |
245 | /* | |
246 | * move output logging to stderr, if we are writing to stdout | |
247 | */ | |
248 | if (td_write(td)) | |
249 | f_out = stderr; | |
66159828 JA |
250 | } |
251 | ||
2dc1bbeb | 252 | if (td->o.odirect) |
2fd233b7 | 253 | flags |= OS_O_DIRECT; |
2dc1bbeb | 254 | if (td->o.sync_io) |
2fd233b7 | 255 | flags |= O_SYNC; |
ad92396c JA |
256 | if (f->filetype != FIO_TYPE_FILE) |
257 | flags |= O_NOATIME; | |
53cdc686 | 258 | |
056f3459 | 259 | open_again: |
660a1cb5 | 260 | if (td_write(td)) { |
4241ea8f JA |
261 | assert(!read_only); |
262 | ||
2fd233b7 | 263 | flags |= O_RDWR; |
53cdc686 | 264 | |
af52b345 | 265 | if (f->filetype == FIO_TYPE_FILE) |
2fd233b7 | 266 | flags |= O_CREAT; |
2fd233b7 | 267 | |
66159828 JA |
268 | if (is_std) |
269 | f->fd = dup(STDOUT_FILENO); | |
29c1349f JA |
270 | else { |
271 | __f = lookup_file_hash(f->file_name); | |
272 | if (__f) { | |
273 | f->sem = __f->sem; | |
274 | f->fd = dup(__f->fd); | |
275 | f->references++; | |
276 | from_hash = 1; | |
277 | } else | |
278 | f->fd = open(f->file_name, flags, 0600); | |
279 | } | |
2fd233b7 | 280 | } else { |
4241ea8f | 281 | if (f->filetype == FIO_TYPE_CHAR && !read_only) |
2fd233b7 JA |
282 | flags |= O_RDWR; |
283 | else | |
284 | flags |= O_RDONLY; | |
285 | ||
66159828 JA |
286 | if (is_std) |
287 | f->fd = dup(STDIN_FILENO); | |
29c1349f JA |
288 | else { |
289 | __f = lookup_file_hash(f->file_name); | |
290 | if (__f) { | |
291 | f->sem = __f->sem; | |
292 | f->fd = dup(__f->fd); | |
293 | f->references++; | |
294 | from_hash = 1; | |
295 | } else | |
296 | f->fd = open(f->file_name, flags); | |
297 | } | |
53cdc686 JA |
298 | } |
299 | ||
300 | if (f->fd == -1) { | |
e4e33258 | 301 | char buf[FIO_VERROR_SIZE]; |
e1161c32 JA |
302 | int __e = errno; |
303 | ||
056f3459 AC |
304 | if (errno == EPERM && (flags & O_NOATIME)) { |
305 | flags &= ~O_NOATIME; | |
306 | goto open_again; | |
307 | } | |
308 | ||
e4e33258 JA |
309 | snprintf(buf, sizeof(buf) - 1, "open(%s)", f->file_name); |
310 | ||
311 | td_verror(td, __e, buf); | |
53cdc686 JA |
312 | } |
313 | ||
b5af8293 JA |
314 | if (get_file_size(td, f)) |
315 | goto err; | |
316 | ||
29c1349f JA |
317 | if (!from_hash && f->fd != -1) { |
318 | if (add_file_hash(f)) { | |
319 | int ret; | |
320 | ||
321 | /* | |
322 | * OK to ignore, we haven't done anything with it | |
323 | */ | |
324 | ret = generic_close_file(td, f); | |
325 | goto open_again; | |
326 | } | |
327 | } | |
4906e0b5 | 328 | |
53cdc686 | 329 | return 0; |
b5af8293 JA |
330 | err: |
331 | close(f->fd); | |
332 | return 1; | |
333 | } | |
334 | ||
21972cde JA |
335 | int open_files(struct thread_data *td) |
336 | { | |
337 | struct fio_file *f; | |
af52b345 JA |
338 | unsigned int i; |
339 | int err = 0; | |
21972cde | 340 | |
ee56ad50 JA |
341 | dprint(FD_FILE, "open files\n"); |
342 | ||
21972cde | 343 | for_each_file(td, f, i) { |
b5af8293 | 344 | err = td_io_open_file(td, f); |
9bf27b45 JA |
345 | if (err) { |
346 | if (td->error == EMFILE) { | |
347 | log_err("fio: limited open files to: %d\n", td->nr_open_files); | |
348 | td->o.open_files = td->nr_open_files; | |
349 | err = 0; | |
350 | clear_error(td); | |
351 | } | |
21972cde | 352 | break; |
9bf27b45 | 353 | } |
b5af8293 | 354 | |
2dc1bbeb | 355 | if (td->o.open_files == td->nr_open_files) |
b5af8293 | 356 | break; |
21972cde JA |
357 | } |
358 | ||
7abf833d JA |
359 | if (!err) |
360 | return 0; | |
361 | ||
bdb4e2e9 | 362 | for_each_file(td, f, i) |
b5af8293 | 363 | td_io_close_file(td, f); |
7abf833d | 364 | |
21972cde JA |
365 | return err; |
366 | } | |
367 | ||
7bb48f84 JA |
368 | /* |
369 | * open/close all files, so that ->real_file_size gets set | |
370 | */ | |
bab3fd58 | 371 | static int get_file_sizes(struct thread_data *td) |
7bb48f84 JA |
372 | { |
373 | struct fio_file *f; | |
374 | unsigned int i; | |
bab3fd58 | 375 | int err = 0; |
7bb48f84 JA |
376 | |
377 | for_each_file(td, f, i) { | |
bab3fd58 | 378 | if (td->io_ops->open_file(td, f)) { |
40b44f4a JA |
379 | if (td->error != ENOENT) { |
380 | log_err("%s\n", td->verror); | |
381 | err = 1; | |
382 | } | |
541d66d7 | 383 | clear_error(td); |
07eb79df JA |
384 | } else { |
385 | if (td->io_ops->close_file) | |
386 | td->io_ops->close_file(td, f); | |
387 | } | |
409b3417 JA |
388 | |
389 | if (f->real_file_size == -1ULL && td->o.size) | |
390 | f->real_file_size = td->o.size / td->o.nr_files; | |
7bb48f84 | 391 | } |
bab3fd58 JA |
392 | |
393 | return err; | |
7bb48f84 JA |
394 | } |
395 | ||
396 | /* | |
397 | * Open the files and setup files sizes, creating files if necessary. | |
398 | */ | |
53cdc686 JA |
399 | int setup_files(struct thread_data *td) |
400 | { | |
7bb48f84 | 401 | unsigned long long total_size, extend_size; |
53cdc686 | 402 | struct fio_file *f; |
af52b345 | 403 | unsigned int i; |
000b0803 | 404 | int err = 0, need_extend; |
53cdc686 | 405 | |
ee56ad50 JA |
406 | dprint(FD_FILE, "setup files\n"); |
407 | ||
53cdc686 JA |
408 | /* |
409 | * if ioengine defines a setup() method, it's responsible for | |
7bb48f84 JA |
410 | * opening the files and setting f->real_file_size to indicate |
411 | * the valid range for that file. | |
53cdc686 JA |
412 | */ |
413 | if (td->io_ops->setup) | |
7bb48f84 JA |
414 | err = td->io_ops->setup(td); |
415 | else | |
bab3fd58 | 416 | err = get_file_sizes(td); |
53cdc686 | 417 | |
f1027063 JA |
418 | if (err) |
419 | return err; | |
420 | ||
0a7eb121 | 421 | /* |
7bb48f84 JA |
422 | * check sizes. if the files/devices do not exist and the size |
423 | * isn't passed to fio, abort. | |
0a7eb121 | 424 | */ |
7bb48f84 JA |
425 | total_size = 0; |
426 | for_each_file(td, f, i) { | |
427 | if (f->real_file_size == -1ULL) | |
428 | total_size = -1ULL; | |
429 | else | |
430 | total_size += f->real_file_size; | |
431 | } | |
0a7eb121 | 432 | |
7bb48f84 JA |
433 | /* |
434 | * device/file sizes are zero and no size given, punt | |
435 | */ | |
1f809d15 | 436 | if ((!total_size || total_size == -1ULL) && !td->o.size && |
aa31f1f1 | 437 | !(td->io_ops->flags & FIO_NOIO) && !td->o.fill_device) { |
7bb48f84 | 438 | log_err("%s: you need to specify size=\n", td->o.name); |
e1161c32 | 439 | td_verror(td, EINVAL, "total_file_size"); |
53cdc686 JA |
440 | return 1; |
441 | } | |
442 | ||
7bb48f84 JA |
443 | /* |
444 | * now file sizes are known, so we can set ->io_size. if size= is | |
445 | * not given, ->io_size is just equal to ->real_file_size. if size | |
446 | * is given, ->io_size is size / nr_files. | |
447 | */ | |
448 | extend_size = total_size = 0; | |
449 | need_extend = 0; | |
450 | for_each_file(td, f, i) { | |
bcdedd0a YHJT |
451 | f->file_offset = td->o.start_offset; |
452 | ||
7bb48f84 JA |
453 | if (!td->o.file_size_low) { |
454 | /* | |
455 | * no file size range given, file size is equal to | |
456 | * total size divided by number of files. if that is | |
457 | * zero, set it to the real file size. | |
458 | */ | |
459 | f->io_size = td->o.size / td->o.nr_files; | |
65bdb10a | 460 | if (!f->io_size) |
273f8c91 | 461 | f->io_size = f->real_file_size - f->file_offset; |
7bb48f84 JA |
462 | } else if (f->real_file_size < td->o.file_size_low || |
463 | f->real_file_size > td->o.file_size_high) { | |
bcdedd0a YHJT |
464 | if (f->file_offset > td->o.file_size_low) |
465 | goto err_offset; | |
7bb48f84 JA |
466 | /* |
467 | * file size given. if it's fixed, use that. if it's a | |
468 | * range, generate a random size in-between. | |
469 | */ | |
470 | if (td->o.file_size_low == td->o.file_size_high) | |
bcdedd0a | 471 | f->io_size = td->o.file_size_low - f->file_offset; |
7bb48f84 | 472 | else |
bcdedd0a | 473 | f->io_size = get_rand_file_size(td) - f->file_offset; |
65bdb10a | 474 | } else |
bcdedd0a | 475 | f->io_size = f->real_file_size - f->file_offset; |
53cdc686 | 476 | |
7bb48f84 JA |
477 | if (f->io_size == -1ULL) |
478 | total_size = -1ULL; | |
479 | else | |
480 | total_size += f->io_size; | |
481 | ||
482 | if (f->filetype == FIO_TYPE_FILE && | |
bcdedd0a | 483 | (f->io_size + f->file_offset) > f->real_file_size && |
7bb48f84 JA |
484 | !(td->io_ops->flags & FIO_DISKLESSIO)) { |
485 | need_extend++; | |
bcdedd0a | 486 | extend_size += (f->io_size + f->file_offset); |
7bb48f84 | 487 | f->flags |= FIO_FILE_EXTEND; |
bcdedd0a | 488 | } |
7bb48f84 | 489 | } |
53cdc686 | 490 | |
2298290e | 491 | if (!td->o.size || td->o.size > total_size) |
7bb48f84 | 492 | td->o.size = total_size; |
21972cde | 493 | |
7bb48f84 JA |
494 | /* |
495 | * See if we need to extend some files | |
496 | */ | |
497 | if (need_extend) { | |
498 | temp_stall_ts = 1; | |
f627d8ae | 499 | log_info("%s: Laying out IO file(s) (%u file(s) / %LuMiB)\n", |
7bb48f84 JA |
500 | td->o.name, need_extend, extend_size >> 20); |
501 | ||
502 | for_each_file(td, f, i) { | |
503 | if (!(f->flags & FIO_FILE_EXTEND)) | |
504 | continue; | |
505 | ||
409b3417 | 506 | assert(f->filetype == FIO_TYPE_FILE); |
7bb48f84 | 507 | f->flags &= ~FIO_FILE_EXTEND; |
bcdedd0a | 508 | f->real_file_size = (f->io_size + f->file_offset); |
7bb48f84 JA |
509 | err = extend_file(td, f); |
510 | if (err) | |
511 | break; | |
512 | } | |
513 | temp_stall_ts = 0; | |
514 | } | |
515 | ||
516 | if (err) | |
517 | return err; | |
518 | ||
519 | if (!td->o.zone_size) | |
520 | td->o.zone_size = td->o.size; | |
521 | ||
ea966f81 JA |
522 | /* |
523 | * iolog already set the total io size, if we read back | |
524 | * stored entries. | |
525 | */ | |
526 | if (!td->o.read_iolog_file) | |
527 | td->total_io_size = td->o.size * td->o.loops; | |
7bb48f84 | 528 | return 0; |
bcdedd0a YHJT |
529 | err_offset: |
530 | log_err("%s: you need to specify valid offset=\n", td->o.name); | |
531 | return 1; | |
53cdc686 JA |
532 | } |
533 | ||
68727076 JA |
534 | int init_random_map(struct thread_data *td) |
535 | { | |
509eab12 | 536 | unsigned long long blocks, num_maps; |
68727076 JA |
537 | struct fio_file *f; |
538 | unsigned int i; | |
539 | ||
de8dd119 | 540 | if (td->o.norandommap || !td_random(td)) |
68727076 JA |
541 | return 0; |
542 | ||
543 | for_each_file(td, f, i) { | |
509eab12 JA |
544 | blocks = (f->real_file_size + td->o.rw_min_bs - 1) / (unsigned long long) td->o.rw_min_bs; |
545 | num_maps = (blocks + BLOCKS_PER_MAP-1)/ (unsigned long long) BLOCKS_PER_MAP; | |
f17c4392 | 546 | f->file_map = smalloc(num_maps * sizeof(long)); |
68727076 JA |
547 | if (!f->file_map) { |
548 | log_err("fio: failed allocating random map. If running a large number of jobs, try the 'norandommap' option\n"); | |
549 | return 1; | |
550 | } | |
551 | f->num_maps = num_maps; | |
68727076 JA |
552 | } |
553 | ||
554 | return 0; | |
555 | } | |
556 | ||
53cdc686 JA |
557 | void close_files(struct thread_data *td) |
558 | { | |
0ab8db89 | 559 | struct fio_file *f; |
af52b345 | 560 | unsigned int i; |
53cdc686 | 561 | |
24ffd2c2 JA |
562 | for_each_file(td, f, i) |
563 | td_io_close_file(td, f); | |
564 | } | |
565 | ||
566 | void close_and_free_files(struct thread_data *td) | |
567 | { | |
568 | struct fio_file *f; | |
569 | unsigned int i; | |
570 | ||
ee56ad50 JA |
571 | dprint(FD_FILE, "close files\n"); |
572 | ||
0ab8db89 | 573 | for_each_file(td, f, i) { |
a9b7b305 | 574 | if (td->o.unlink && f->filetype == FIO_TYPE_FILE) |
132ad46d | 575 | unlink(f->file_name); |
bdb4e2e9 | 576 | |
b5af8293 | 577 | td_io_close_file(td, f); |
b3dc7f07 | 578 | |
f17c4392 | 579 | sfree(f->file_name); |
fa1da865 JA |
580 | f->file_name = NULL; |
581 | ||
c343981b | 582 | if (f->file_map) { |
f17c4392 | 583 | sfree(f->file_map); |
c343981b JA |
584 | f->file_map = NULL; |
585 | } | |
78d99e6a | 586 | sfree(f); |
53cdc686 | 587 | } |
b4a6a59a | 588 | |
2dc1bbeb | 589 | td->o.filename = NULL; |
cade3ef4 | 590 | free(td->files); |
b4a6a59a | 591 | td->files = NULL; |
2dc1bbeb | 592 | td->o.nr_files = 0; |
53cdc686 | 593 | } |
af52b345 | 594 | |
e3bab463 | 595 | static void get_file_type(struct fio_file *f) |
af52b345 JA |
596 | { |
597 | struct stat sb; | |
598 | ||
66159828 JA |
599 | if (!strcmp(f->file_name, "-")) |
600 | f->filetype = FIO_TYPE_PIPE; | |
601 | else | |
602 | f->filetype = FIO_TYPE_FILE; | |
af52b345 | 603 | |
e3bab463 | 604 | if (!lstat(f->file_name, &sb)) { |
af52b345 JA |
605 | if (S_ISBLK(sb.st_mode)) |
606 | f->filetype = FIO_TYPE_BD; | |
607 | else if (S_ISCHR(sb.st_mode)) | |
608 | f->filetype = FIO_TYPE_CHAR; | |
b5605e9d JA |
609 | else if (S_ISFIFO(sb.st_mode)) |
610 | f->filetype = FIO_TYPE_PIPE; | |
af52b345 JA |
611 | } |
612 | } | |
613 | ||
f29b25a3 | 614 | int add_file(struct thread_data *td, const char *fname) |
af52b345 | 615 | { |
7b4e4fe5 | 616 | int cur_files = td->files_index; |
bd0ee748 | 617 | char file_name[PATH_MAX]; |
af52b345 | 618 | struct fio_file *f; |
bd0ee748 | 619 | int len = 0; |
af52b345 | 620 | |
ee56ad50 JA |
621 | dprint(FD_FILE, "add file %s\n", fname); |
622 | ||
f17c4392 | 623 | f = smalloc(sizeof(*f)); |
af52b345 | 624 | f->fd = -1; |
bd0ee748 | 625 | |
126d65c6 JA |
626 | td->files = realloc(td->files, (cur_files + 1) * sizeof(f)); |
627 | ||
628 | td->files[cur_files] = f; | |
629 | ||
07eb79df JA |
630 | /* |
631 | * init function, io engine may not be loaded yet | |
632 | */ | |
633 | if (td->io_ops && (td->io_ops->flags & FIO_DISKLESSIO)) | |
634 | f->real_file_size = -1ULL; | |
635 | ||
bd0ee748 JA |
636 | if (td->o.directory) |
637 | len = sprintf(file_name, "%s/", td->o.directory); | |
638 | ||
639 | sprintf(file_name + len, "%s", fname); | |
f17c4392 | 640 | f->file_name = smalloc_strdup(file_name); |
af52b345 | 641 | |
e3bab463 | 642 | get_file_type(f); |
af52b345 | 643 | |
29c1349f JA |
644 | if (td->o.lockfile) |
645 | f->sem = fio_sem_init(1); | |
646 | ||
7b4e4fe5 | 647 | td->files_index++; |
1549441c JA |
648 | if (f->filetype == FIO_TYPE_FILE) |
649 | td->nr_normal_files++; | |
f29b25a3 JA |
650 | |
651 | return cur_files; | |
af52b345 | 652 | } |
0ad920e7 JA |
653 | |
654 | void get_file(struct fio_file *f) | |
655 | { | |
8172fe97 | 656 | dprint(FD_FILE, "get file %s, ref=%d\n", f->file_name, f->references); |
97af62ce | 657 | assert(f->flags & FIO_FILE_OPEN); |
0ad920e7 JA |
658 | f->references++; |
659 | } | |
660 | ||
6977bcd0 | 661 | int put_file(struct thread_data *td, struct fio_file *f) |
0ad920e7 | 662 | { |
6977bcd0 JA |
663 | int ret = 0; |
664 | ||
8172fe97 | 665 | dprint(FD_FILE, "put file %s, ref=%d\n", f->file_name, f->references); |
ee56ad50 | 666 | |
0ad920e7 | 667 | if (!(f->flags & FIO_FILE_OPEN)) |
6977bcd0 | 668 | return 0; |
0ad920e7 JA |
669 | |
670 | assert(f->references); | |
671 | if (--f->references) | |
6977bcd0 | 672 | return 0; |
0ad920e7 | 673 | |
d424d4dd | 674 | if (should_fsync(td) && td->o.fsync_on_close) |
ebb1415f JA |
675 | fsync(f->fd); |
676 | ||
0ad920e7 | 677 | if (td->io_ops->close_file) |
6977bcd0 | 678 | ret = td->io_ops->close_file(td, f); |
1020a139 | 679 | |
0ad920e7 JA |
680 | td->nr_open_files--; |
681 | f->flags &= ~FIO_FILE_OPEN; | |
6977bcd0 | 682 | return ret; |
0ad920e7 | 683 | } |
bbf6b540 | 684 | |
b2bd2bd9 JA |
685 | void lock_file(struct thread_data *td, struct fio_file *f) |
686 | { | |
29c1349f JA |
687 | if (f && f->sem) { |
688 | if (f->sem_owner == td && f->sem_batch--) | |
689 | return; | |
690 | ||
691 | fio_sem_down(f->sem); | |
692 | f->sem_owner = td; | |
693 | f->sem_batch = td->o.lockfile_batch; | |
694 | } | |
b2bd2bd9 JA |
695 | } |
696 | ||
697 | void unlock_file(struct fio_file *f) | |
698 | { | |
29c1349f JA |
699 | if (f && f->sem) { |
700 | int sem_val; | |
701 | ||
702 | if (f->sem_batch) | |
703 | return; | |
704 | ||
705 | sem_getvalue(&f->sem->sem, &sem_val); | |
706 | if (!sem_val) | |
707 | f->sem_owner = NULL; | |
708 | fio_sem_up(f->sem); | |
709 | } | |
b2bd2bd9 JA |
710 | } |
711 | ||
bbf6b540 JA |
712 | static int recurse_dir(struct thread_data *td, const char *dirname) |
713 | { | |
714 | struct dirent *dir; | |
715 | int ret = 0; | |
716 | DIR *D; | |
717 | ||
718 | D = opendir(dirname); | |
719 | if (!D) { | |
0ddb270c JA |
720 | char buf[FIO_VERROR_SIZE]; |
721 | ||
722 | snprintf(buf, FIO_VERROR_SIZE - 1, "opendir(%s)", dirname); | |
723 | td_verror(td, errno, buf); | |
bbf6b540 JA |
724 | return 1; |
725 | } | |
726 | ||
727 | while ((dir = readdir(D)) != NULL) { | |
728 | char full_path[PATH_MAX]; | |
729 | struct stat sb; | |
730 | ||
e85b2b83 JA |
731 | if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, "..")) |
732 | continue; | |
96d32d51 | 733 | |
bbf6b540 JA |
734 | sprintf(full_path, "%s/%s", dirname, dir->d_name); |
735 | ||
736 | if (lstat(full_path, &sb) == -1) { | |
737 | if (errno != ENOENT) { | |
738 | td_verror(td, errno, "stat"); | |
739 | return 1; | |
740 | } | |
741 | } | |
742 | ||
743 | if (S_ISREG(sb.st_mode)) { | |
744 | add_file(td, full_path); | |
2dc1bbeb | 745 | td->o.nr_files++; |
bbf6b540 JA |
746 | continue; |
747 | } | |
0ddb270c JA |
748 | if (!S_ISDIR(sb.st_mode)) |
749 | continue; | |
bbf6b540 | 750 | |
bbf6b540 JA |
751 | if ((ret = recurse_dir(td, full_path)) != 0) |
752 | break; | |
753 | } | |
754 | ||
755 | closedir(D); | |
756 | return ret; | |
757 | } | |
758 | ||
759 | int add_dir_files(struct thread_data *td, const char *path) | |
760 | { | |
0ddb270c JA |
761 | int ret = recurse_dir(td, path); |
762 | ||
763 | if (!ret) | |
764 | log_info("fio: opendir added %d files\n", td->o.nr_files); | |
765 | ||
766 | return ret; | |
bbf6b540 | 767 | } |
cade3ef4 JA |
768 | |
769 | void dup_files(struct thread_data *td, struct thread_data *org) | |
770 | { | |
771 | struct fio_file *f; | |
772 | unsigned int i; | |
773 | size_t bytes; | |
774 | ||
775 | if (!org->files) | |
776 | return; | |
777 | ||
b0fe421a | 778 | bytes = org->files_index * sizeof(f); |
cade3ef4 JA |
779 | td->files = malloc(bytes); |
780 | memcpy(td->files, org->files, bytes); | |
781 | ||
782 | for_each_file(td, f, i) { | |
b0fe421a JA |
783 | struct fio_file *__f; |
784 | ||
f17c4392 | 785 | __f = smalloc(sizeof(*__f)); |
b0fe421a | 786 | |
cade3ef4 | 787 | if (f->file_name) |
f17c4392 | 788 | __f->file_name = smalloc_strdup(f->file_name); |
b0fe421a JA |
789 | |
790 | td->files[i] = __f; | |
cade3ef4 JA |
791 | } |
792 | } | |
f29b25a3 JA |
793 | |
794 | /* | |
795 | * Returns the index that matches the filename, or -1 if not there | |
796 | */ | |
797 | int get_fileno(struct thread_data *td, const char *fname) | |
798 | { | |
799 | struct fio_file *f; | |
800 | unsigned int i; | |
801 | ||
802 | for_each_file(td, f, i) | |
803 | if (!strcmp(f->file_name, fname)) | |
804 | return i; | |
805 | ||
806 | return -1; | |
807 | } | |
808 | ||
809 | /* | |
810 | * For log usage, where we add/open/close files automatically | |
811 | */ | |
812 | void free_release_files(struct thread_data *td) | |
813 | { | |
814 | close_files(td); | |
815 | td->files_index = 0; | |
816 | td->nr_normal_files = 0; | |
817 | } |