blob: 799202f0da5bbccf9b7aca0e90fc7f7ed5293004 [file] [log] [blame]
Jens Axboe53cdc682006-10-18 11:50:58 +02001#include <unistd.h>
2#include <fcntl.h>
3#include <string.h>
4#include <assert.h>
Jens Axboebbf6b542007-03-13 15:28:55 +01005#include <dirent.h>
YAMAMOTO Takashid74ac842010-06-09 09:44:53 +02006#include <libgen.h>
Jens Axboe53cdc682006-10-18 11:50:58 +02007#include <sys/stat.h>
8#include <sys/mman.h>
Jens Axboebbf6b542007-03-13 15:28:55 +01009#include <sys/types.h>
Jens Axboe53cdc682006-10-18 11:50:58 +020010
11#include "fio.h"
Jens Axboef17c4392008-03-01 18:40:46 +010012#include "smalloc.h"
Jens Axboe4906e0b2008-03-01 18:59:51 +010013#include "filehash.h"
Bruce Cranecc314b2011-01-04 10:59:30 +010014#include "os/os.h"
Jens Axboe53cdc682006-10-18 11:50:58 +020015
Jens Axboe7172cfe2007-07-23 14:36:00 +020016static int root_warn;
17
Jens Axboec592b9f2009-06-03 09:29:28 +020018static inline void clear_error(struct thread_data *td)
19{
20 td->error = 0;
21 td->verror[0] = '\0';
22}
23
Jens Axboe3baddf22008-04-04 11:10:30 +020024/*
25 * Leaves f->fd open on success, caller must close
26 */
Jens Axboe7bb48f82007-03-27 15:30:28 +020027static int extend_file(struct thread_data *td, struct fio_file *f)
Jens Axboe25205e92006-10-19 20:50:14 +020028{
Jens Axboeea443652007-03-29 14:52:13 +020029 int r, new_layout = 0, unlink_file = 0, flags;
Jens Axboe25205e92006-10-19 20:50:14 +020030 unsigned long long left;
31 unsigned int bs;
32 char *b;
Jens Axboeb2a15192006-10-18 14:10:42 +020033
Jens Axboe4241ea82007-09-12 08:18:36 +020034 if (read_only) {
35 log_err("fio: refusing extend of file due to read-only\n");
36 return 0;
37 }
38
Jens Axboe507a7022007-03-27 15:52:46 +020039 /*
40 * check if we need to lay the file out complete again. fio
41 * does that for operations involving reads, or for writes
42 * where overwrite is set
43 */
Jens Axboeffdfabd2008-03-26 09:18:14 +010044 if (td_read(td) || (td_write(td) && td->o.overwrite) ||
45 (td_write(td) && td->io_ops->flags & FIO_NOEXTEND))
Jens Axboe507a7022007-03-27 15:52:46 +020046 new_layout = 1;
Jens Axboeea443652007-03-29 14:52:13 +020047 if (td_write(td) && !td->o.overwrite)
48 unlink_file = 1;
Jens Axboe507a7022007-03-27 15:52:46 +020049
Jens Axboe6ae1f572008-02-21 10:20:00 +010050 if (unlink_file || new_layout) {
Jens Axboebd199f22008-03-26 09:57:18 +010051 dprint(FD_FILE, "layout unlink %s\n", f->file_name);
Zhang, Yanmin982016d2008-02-26 15:35:52 +010052 if ((unlink(f->file_name) < 0) && (errno != ENOENT)) {
Jens Axboe7bb48f82007-03-27 15:30:28 +020053 td_verror(td, errno, "unlink");
54 return 1;
55 }
56 }
57
Jens Axboe507a7022007-03-27 15:52:46 +020058 flags = O_WRONLY | O_CREAT;
59 if (new_layout)
60 flags |= O_TRUNC;
61
Jens Axboeee56ad52008-02-01 10:30:20 +010062 dprint(FD_FILE, "open file %s, flags %x\n", f->file_name, flags);
Jens Axboe507a7022007-03-27 15:52:46 +020063 f->fd = open(f->file_name, flags, 0644);
Jens Axboe53cdc682006-10-18 11:50:58 +020064 if (f->fd < 0) {
Jens Axboee1161c32007-02-22 19:36:48 +010065 td_verror(td, errno, "open");
Jens Axboe53cdc682006-10-18 11:50:58 +020066 return 1;
67 }
68
Jens Axboe7bc8c2c2010-01-28 11:31:31 +010069#ifdef FIO_HAVE_FALLOCATE
70 if (td->o.fallocate && !td->o.fill_device) {
71 dprint(FD_FILE, "fallocate file %s size %llu\n", f->file_name,
72 f->real_file_size);
73
74 r = posix_fallocate(f->fd, 0, f->real_file_size);
Greg Edwards10accd72010-06-25 09:25:22 -060075 if (r > 0) {
Jens Axboe7bc8c2c2010-01-28 11:31:31 +010076 log_err("fio: posix_fallocate fails: %s\n",
Greg Edwards10accd72010-06-25 09:25:22 -060077 strerror(r));
Jens Axboe7bc8c2c2010-01-28 11:31:31 +010078 }
79 }
80#endif
Bruce Cran9b836562011-01-08 19:49:54 +010081
Shawn Lewisfc74ac12008-01-11 09:45:11 +010082 if (!new_layout)
83 goto done;
84
Jens Axboe5e0074c2009-06-02 21:40:09 +020085 /*
86 * The size will be -1ULL when fill_device is used, so don't truncate
87 * or fallocate this file, just write it
88 */
89 if (!td->o.fill_device) {
90 dprint(FD_FILE, "truncate file %s, size %llu\n", f->file_name,
Jens Axboeee56ad52008-02-01 10:30:20 +010091 f->real_file_size);
Jens Axboe5e0074c2009-06-02 21:40:09 +020092 if (ftruncate(f->fd, f->real_file_size) == -1) {
93 td_verror(td, errno, "ftruncate");
94 goto err;
95 }
Jens Axboe5e0074c2009-06-02 21:40:09 +020096 }
Jens Axboe40f82982006-10-25 11:21:05 +020097
Jens Axboe2dc1bbe2007-03-15 15:01:33 +010098 b = malloc(td->o.max_bs[DDIR_WRITE]);
99 memset(b, 0, td->o.max_bs[DDIR_WRITE]);
Jens Axboe53cdc682006-10-18 11:50:58 +0200100
Jens Axboe7bb48f82007-03-27 15:30:28 +0200101 left = f->real_file_size;
Jens Axboe53cdc682006-10-18 11:50:58 +0200102 while (left && !td->terminate) {
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100103 bs = td->o.max_bs[DDIR_WRITE];
Jens Axboe53cdc682006-10-18 11:50:58 +0200104 if (bs > left)
105 bs = left;
106
107 r = write(f->fd, b, bs);
108
Jens Axboe5e0074c2009-06-02 21:40:09 +0200109 if (r > 0) {
110 left -= r;
Jens Axboe53cdc682006-10-18 11:50:58 +0200111 continue;
112 } else {
Jens Axboe5e0074c2009-06-02 21:40:09 +0200113 if (r < 0) {
114 int __e = errno;
115
116 if (__e == ENOSPC) {
117 if (td->o.fill_device)
118 break;
119 log_info("fio: ENOSPC on laying out "
120 "file, stopping\n");
121 break;
122 }
Jens Axboee1161c32007-02-22 19:36:48 +0100123 td_verror(td, errno, "write");
Jens Axboe5e0074c2009-06-02 21:40:09 +0200124 } else
Jens Axboee1161c32007-02-22 19:36:48 +0100125 td_verror(td, EIO, "write");
Jens Axboe53cdc682006-10-18 11:50:58 +0200126
127 break;
128 }
129 }
130
Jens Axboeffdfabd2008-03-26 09:18:14 +0100131 if (td->terminate) {
132 dprint(FD_FILE, "terminate unlink %s\n", f->file_name);
Jens Axboe53cdc682006-10-18 11:50:58 +0200133 unlink(f->file_name);
Jens Axboeffdfabd2008-03-26 09:18:14 +0100134 } else if (td->o.create_fsync) {
Jens Axboe98e1ac42008-03-06 11:56:48 +0100135 if (fsync(f->fd) < 0) {
136 td_verror(td, errno, "fsync");
137 goto err;
138 }
139 }
Jens Axboe0d1cd202009-06-05 22:11:52 +0200140 if (td->o.fill_device && !td_write(td)) {
Jens Axboed6aed792009-06-03 08:41:15 +0200141 fio_file_clear_size_known(f);
Jens Axboe5e0074c2009-06-02 21:40:09 +0200142 if (td_io_get_file_size(td, f))
143 goto err;
144 if (f->io_size > f->real_file_size)
145 f->io_size = f->real_file_size;
146 }
Jens Axboe53cdc682006-10-18 11:50:58 +0200147
148 free(b);
Jens Axboe507a7022007-03-27 15:52:46 +0200149done:
Jens Axboe53cdc682006-10-18 11:50:58 +0200150 return 0;
151err:
152 close(f->fd);
153 f->fd = -1;
154 return 1;
155}
156
Zhang, Yanminafad68f2009-05-20 11:30:55 +0200157static int pre_read_file(struct thread_data *td, struct fio_file *f)
158{
Jens Axboeb0f65862009-05-20 11:52:15 +0200159 int r, did_open = 0, old_runstate;
Zhang, Yanminafad68f2009-05-20 11:30:55 +0200160 unsigned long long left;
161 unsigned int bs;
162 char *b;
163
Jens Axboe9c0d2242009-07-01 12:26:28 +0200164 if (td->io_ops->flags & FIO_PIPEIO)
165 return 0;
166
Jens Axboed6aed792009-06-03 08:41:15 +0200167 if (!fio_file_open(f)) {
Jens Axboeb0f65862009-05-20 11:52:15 +0200168 if (td->io_ops->open_file(td, f)) {
169 log_err("fio: cannot pre-read, failed to open file\n");
170 return 1;
171 }
172 did_open = 1;
173 }
174
175 old_runstate = td->runstate;
176 td_set_runstate(td, TD_PRE_READING);
177
Zhang, Yanminafad68f2009-05-20 11:30:55 +0200178 bs = td->o.max_bs[DDIR_READ];
179 b = malloc(bs);
180 memset(b, 0, bs);
181
182 lseek(f->fd, f->file_offset, SEEK_SET);
183 left = f->io_size;
184
185 while (left && !td->terminate) {
186 if (bs > left)
187 bs = left;
188
189 r = read(f->fd, b, bs);
190
191 if (r == (int) bs) {
192 left -= bs;
193 continue;
194 } else {
195 td_verror(td, EIO, "pre_read");
196 break;
197 }
198 }
199
Jens Axboeb0f65862009-05-20 11:52:15 +0200200 td_set_runstate(td, old_runstate);
201
202 if (did_open)
203 td->io_ops->close_file(td, f);
Zhang, Yanminafad68f2009-05-20 11:30:55 +0200204 free(b);
205 return 0;
206}
207
Jens Axboe7bb48f82007-03-27 15:30:28 +0200208static unsigned long long get_rand_file_size(struct thread_data *td)
Jens Axboe9c60ce62007-03-15 09:14:47 +0100209{
Jens Axboedc873b62008-06-04 20:13:04 +0200210 unsigned long long ret, sized;
Jens Axboe1294c3e2011-05-11 08:15:18 +0200211 unsigned long r;
Jens Axboe9c60ce62007-03-15 09:14:47 +0100212
Jens Axboe4c07ad82011-03-28 09:51:09 +0200213 if (td->o.use_os_rand) {
214 r = os_random_long(&td->file_size_state);
215 sized = td->o.file_size_high - td->o.file_size_low;
216 ret = (unsigned long long) ((double) sized * (r / (OS_RAND_MAX + 1.0)));
217 } else {
218 r = __rand(&td->__file_size_state);
219 sized = td->o.file_size_high - td->o.file_size_low;
220 ret = (unsigned long long) ((double) sized * (r / (FRAND_MAX + 1.0)));
221 }
222
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100223 ret += td->o.file_size_low;
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100224 ret -= (ret % td->o.rw_min_bs);
Jens Axboe9c60ce62007-03-15 09:14:47 +0100225 return ret;
226}
227
Jens Axboe53cdc682006-10-18 11:50:58 +0200228static int file_size(struct thread_data *td, struct fio_file *f)
229{
230 struct stat st;
231
Jens Axboedf9c26b2009-03-05 10:13:58 +0100232 if (stat(f->file_name, &st) == -1) {
Jens Axboe7bb48f82007-03-27 15:30:28 +0200233 td_verror(td, errno, "fstat");
234 return 1;
235 }
Jens Axboe53cdc682006-10-18 11:50:58 +0200236
Jens Axboe7bb48f82007-03-27 15:30:28 +0200237 f->real_file_size = st.st_size;
Jens Axboe53cdc682006-10-18 11:50:58 +0200238 return 0;
239}
240
241static int bdev_size(struct thread_data *td, struct fio_file *f)
242{
Bruce Cran9b836562011-01-08 19:49:54 +0100243 unsigned long long bytes = 0;
Jens Axboe53cdc682006-10-18 11:50:58 +0200244 int r;
245
Jens Axboedf9c26b2009-03-05 10:13:58 +0100246 if (td->io_ops->open_file(td, f)) {
247 log_err("fio: failed opening blockdev %s for size check\n",
248 f->file_name);
249 return 1;
250 }
251
Bruce Cranecc314b2011-01-04 10:59:30 +0100252 r = blockdev_size(f, &bytes);
Jens Axboe53cdc682006-10-18 11:50:58 +0200253 if (r) {
Jens Axboee1161c32007-02-22 19:36:48 +0100254 td_verror(td, r, "blockdev_size");
Jens Axboe0e238572010-10-08 11:26:43 +0200255 printf("fd is %d\n", f->fd);
Jens Axboedf9c26b2009-03-05 10:13:58 +0100256 goto err;
Jens Axboe53cdc682006-10-18 11:50:58 +0200257 }
258
Jens Axboe7ab077a2009-02-02 15:07:37 +0100259 if (!bytes) {
260 log_err("%s: zero sized block device?\n", f->file_name);
Jens Axboedf9c26b2009-03-05 10:13:58 +0100261 goto err;
Jens Axboe7ab077a2009-02-02 15:07:37 +0100262 }
263
Jens Axboe53cdc682006-10-18 11:50:58 +0200264 f->real_file_size = bytes;
Jens Axboe22a57ba2009-06-09 14:34:35 +0200265 td->io_ops->close_file(td, f);
Jens Axboe53cdc682006-10-18 11:50:58 +0200266 return 0;
Jens Axboedf9c26b2009-03-05 10:13:58 +0100267err:
268 td->io_ops->close_file(td, f);
269 return 1;
Jens Axboe53cdc682006-10-18 11:50:58 +0200270}
271
Jens Axboe4ccdccd2010-06-24 10:27:22 +0200272static int char_size(struct thread_data *td, struct fio_file *f)
273{
274#ifdef FIO_HAVE_CHARDEV_SIZE
Bruce Cran9b836562011-01-08 19:49:54 +0100275 unsigned long long bytes = 0;
Jens Axboe4ccdccd2010-06-24 10:27:22 +0200276 int r;
277
278 if (td->io_ops->open_file(td, f)) {
279 log_err("fio: failed opening blockdev %s for size check\n",
280 f->file_name);
281 return 1;
282 }
283
Bruce Cranecc314b2011-01-04 10:59:30 +0100284 r = chardev_size(f, &bytes);
Jens Axboe4ccdccd2010-06-24 10:27:22 +0200285 if (r) {
286 td_verror(td, r, "chardev_size");
287 goto err;
288 }
289
290 if (!bytes) {
291 log_err("%s: zero sized char device?\n", f->file_name);
292 goto err;
293 }
294
295 f->real_file_size = bytes;
296 td->io_ops->close_file(td, f);
297 return 0;
298err:
299 td->io_ops->close_file(td, f);
300 return 1;
301#else
302 f->real_file_size = -1ULL;
303 return 0;
304#endif
305}
306
Jens Axboe53cdc682006-10-18 11:50:58 +0200307static int get_file_size(struct thread_data *td, struct fio_file *f)
308{
309 int ret = 0;
310
Jens Axboed6aed792009-06-03 08:41:15 +0200311 if (fio_file_size_known(f))
Jens Axboe409b3412007-03-28 09:57:01 +0200312 return 0;
313
Jens Axboe7bb48f82007-03-27 15:30:28 +0200314 if (f->filetype == FIO_TYPE_FILE)
315 ret = file_size(td, f);
316 else if (f->filetype == FIO_TYPE_BD)
Jens Axboe53cdc682006-10-18 11:50:58 +0200317 ret = bdev_size(td, f);
Jens Axboe4ccdccd2010-06-24 10:27:22 +0200318 else if (f->filetype == FIO_TYPE_CHAR)
319 ret = char_size(td, f);
Jens Axboe53cdc682006-10-18 11:50:58 +0200320 else
321 f->real_file_size = -1;
322
323 if (ret)
324 return ret;
325
326 if (f->file_offset > f->real_file_size) {
Bruce Cran0f2152c2010-12-15 10:33:03 +0100327 log_err("%s: offset extends end (%llu > %llu)\n", td->o.name,
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100328 f->file_offset, f->real_file_size);
Jens Axboe53cdc682006-10-18 11:50:58 +0200329 return 1;
330 }
331
Jens Axboed6aed792009-06-03 08:41:15 +0200332 fio_file_set_size_known(f);
Jens Axboe53cdc682006-10-18 11:50:58 +0200333 return 0;
334}
335
Jens Axboe3baddf22008-04-04 11:10:30 +0200336static int __file_invalidate_cache(struct thread_data *td, struct fio_file *f,
337 unsigned long long off,
338 unsigned long long len)
Jens Axboee5b401d2006-10-18 16:03:40 +0200339{
340 int ret = 0;
341
Jens Axboe5e0074c2009-06-02 21:40:09 +0200342 if (len == -1ULL)
Jens Axboe3baddf22008-04-04 11:10:30 +0200343 len = f->io_size;
344 if (off == -1ULL)
345 off = f->file_offset;
Jens Axboeee56ad52008-02-01 10:30:20 +0100346
Jens Axboe0d1cd202009-06-05 22:11:52 +0200347 if (len == -1ULL || off == -1ULL)
348 return 0;
349
Jens Axboe3baddf22008-04-04 11:10:30 +0200350 dprint(FD_IO, "invalidate cache %s: %llu/%llu\n", f->file_name, off,
351 len);
Jens Axboeb5af8292007-03-08 12:43:13 +0100352
Jens Axboee5b401d2006-10-18 16:03:40 +0200353 /*
354 * FIXME: add blockdev flushing too
355 */
Jens Axboea1c58072009-08-04 23:17:02 +0200356 if (f->mmap_ptr) {
Bruce Cran03e20d62011-01-02 20:14:54 +0100357 ret = posix_madvise(f->mmap_ptr, f->mmap_sz, POSIX_MADV_DONTNEED);
Jens Axboea1c58072009-08-04 23:17:02 +0200358#ifdef FIO_MADV_FREE
Bruce Cran03e20d62011-01-02 20:14:54 +0100359 (void) posix_madvise(f->mmap_ptr, f->mmap_sz, FIO_MADV_FREE);
Jens Axboea1c58072009-08-04 23:17:02 +0200360#endif
361 } else if (f->filetype == FIO_TYPE_FILE) {
Bruce Cranecc314b2011-01-04 10:59:30 +0100362 ret = posix_fadvise(f->fd, off, len, POSIX_FADV_DONTNEED);
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100363 } else if (f->filetype == FIO_TYPE_BD) {
Bruce Cranecc314b2011-01-04 10:59:30 +0100364 ret = blockdev_invalidate_cache(f);
Jens Axboe7e0e25c2007-03-27 12:49:56 +0200365 if (ret < 0 && errno == EACCES && geteuid()) {
Jens Axboe7172cfe2007-07-23 14:36:00 +0200366 if (!root_warn) {
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100367 log_err("fio: only root may flush block "
368 "devices. Cache flush bypassed!\n");
Jens Axboe7172cfe2007-07-23 14:36:00 +0200369 root_warn = 1;
370 }
Jens Axboe7e0e25c2007-03-27 12:49:56 +0200371 ret = 0;
372 }
Jens Axboeb5605e92007-04-16 20:42:33 +0200373 } else if (f->filetype == FIO_TYPE_CHAR || f->filetype == FIO_TYPE_PIPE)
Jens Axboee5b401d2006-10-18 16:03:40 +0200374 ret = 0;
375
376 if (ret < 0) {
Jens Axboee1161c32007-02-22 19:36:48 +0100377 td_verror(td, errno, "invalidate_cache");
Jens Axboee5b401d2006-10-18 16:03:40 +0200378 return 1;
Jens Axboe3baddf22008-04-04 11:10:30 +0200379 } else if (ret > 0) {
380 td_verror(td, ret, "invalidate_cache");
381 return 1;
Jens Axboee5b401d2006-10-18 16:03:40 +0200382 }
383
Jens Axboead2da602007-02-26 12:33:27 +0100384 return ret;
Jens Axboe3baddf22008-04-04 11:10:30 +0200385
386}
387
388int file_invalidate_cache(struct thread_data *td, struct fio_file *f)
389{
Jens Axboed6aed792009-06-03 08:41:15 +0200390 if (!fio_file_open(f))
Jens Axboea5fb4612008-05-28 10:54:01 +0200391 return 0;
392
Jens Axboe5e0074c2009-06-02 21:40:09 +0200393 return __file_invalidate_cache(td, f, -1ULL, -1ULL);
Jens Axboee5b401d2006-10-18 16:03:40 +0200394}
395
Jens Axboe6977bcd2008-03-01 15:55:36 +0100396int generic_close_file(struct thread_data fio_unused *td, struct fio_file *f)
Jens Axboe53cdc682006-10-18 11:50:58 +0200397{
Jens Axboe6977bcd2008-03-01 15:55:36 +0100398 int ret = 0;
399
Jens Axboeee56ad52008-02-01 10:30:20 +0100400 dprint(FD_FILE, "fd close %s\n", f->file_name);
Jens Axboe4906e0b2008-03-01 18:59:51 +0100401
402 remove_file_hash(f);
403
Jens Axboe6977bcd2008-03-01 15:55:36 +0100404 if (close(f->fd) < 0)
405 ret = errno;
406
Jens Axboeb5af8292007-03-08 12:43:13 +0100407 f->fd = -1;
Jens Axboe6977bcd2008-03-01 15:55:36 +0100408 return ret;
Jens Axboe53cdc682006-10-18 11:50:58 +0200409}
410
Jens Axboe4d4e80f2008-03-04 10:18:56 +0100411static int file_lookup_open(struct fio_file *f, int flags)
Jens Axboe53cdc682006-10-18 11:50:58 +0200412{
Jens Axboe29c13492008-03-01 19:25:20 +0100413 struct fio_file *__f;
Jens Axboe4d4e80f2008-03-04 10:18:56 +0100414 int from_hash;
415
416 __f = lookup_file_hash(f->file_name);
417 if (__f) {
Jens Axboe9efef3c2008-03-06 10:26:25 +0100418 dprint(FD_FILE, "found file in hash %s\n", f->file_name);
Jens Axboe4d4e80f2008-03-04 10:18:56 +0100419 /*
420 * racy, need the __f->lock locked
421 */
422 f->lock = __f->lock;
423 f->lock_owner = __f->lock_owner;
424 f->lock_batch = __f->lock_batch;
425 f->lock_ddir = __f->lock_ddir;
Jens Axboe4d4e80f2008-03-04 10:18:56 +0100426 from_hash = 1;
427 } else {
Jens Axboe9efef3c2008-03-06 10:26:25 +0100428 dprint(FD_FILE, "file not found in hash %s\n", f->file_name);
Jens Axboe4d4e80f2008-03-04 10:18:56 +0100429 from_hash = 0;
430 }
431
Jens Axboee8670ef2008-03-06 12:06:30 +0100432 f->fd = open(f->file_name, flags, 0600);
Jens Axboe4d4e80f2008-03-04 10:18:56 +0100433 return from_hash;
434}
435
436int generic_open_file(struct thread_data *td, struct fio_file *f)
437{
Jens Axboe66159822007-04-16 21:54:24 +0200438 int is_std = 0;
Jens Axboe53cdc682006-10-18 11:50:58 +0200439 int flags = 0;
Jens Axboe29c13492008-03-01 19:25:20 +0100440 int from_hash = 0;
Jens Axboe53cdc682006-10-18 11:50:58 +0200441
Jens Axboeee56ad52008-02-01 10:30:20 +0100442 dprint(FD_FILE, "fd open %s\n", f->file_name);
443
Jens Axboe66159822007-04-16 21:54:24 +0200444 if (!strcmp(f->file_name, "-")) {
445 if (td_rw(td)) {
446 log_err("fio: can't read/write to stdin/out\n");
447 return 1;
448 }
449 is_std = 1;
Jens Axboece98fa62007-04-17 13:27:32 +0200450
451 /*
452 * move output logging to stderr, if we are writing to stdout
453 */
454 if (td_write(td))
455 f_out = stderr;
Jens Axboe66159822007-04-16 21:54:24 +0200456 }
457
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100458 if (td->o.odirect)
Jens Axboe2fd233b2007-03-02 08:44:25 +0100459 flags |= OS_O_DIRECT;
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100460 if (td->o.sync_io)
Jens Axboe2fd233b2007-03-02 08:44:25 +0100461 flags |= O_SYNC;
Jens Axboead923962007-10-11 21:41:41 +0200462 if (f->filetype != FIO_TYPE_FILE)
Jens Axboe5921e802008-05-30 15:02:38 +0200463 flags |= FIO_O_NOATIME;
Jens Axboe814452b2009-03-04 12:53:13 +0100464 if (td->o.create_on_open)
465 flags |= O_CREAT;
Jens Axboe7abf8332006-11-23 15:01:19 +0100466
Aaron Carroll056f3452007-11-26 09:08:53 +0100467open_again:
Jens Axboe660a1cb2007-04-17 15:37:47 +0200468 if (td_write(td)) {
Jens Axboe17308152008-03-07 13:42:31 +0100469 if (!read_only)
470 flags |= O_RDWR;
Jens Axboe53cdc682006-10-18 11:50:58 +0200471
Jens Axboeaf52b342007-03-13 10:07:47 +0100472 if (f->filetype == FIO_TYPE_FILE)
Jens Axboe2fd233b2007-03-02 08:44:25 +0100473 flags |= O_CREAT;
Jens Axboe2fd233b2007-03-02 08:44:25 +0100474
Jens Axboe66159822007-04-16 21:54:24 +0200475 if (is_std)
476 f->fd = dup(STDOUT_FILENO);
Jens Axboe4d4e80f2008-03-04 10:18:56 +0100477 else
478 from_hash = file_lookup_open(f, flags);
Jens Axboe2fd233b2007-03-02 08:44:25 +0100479 } else {
Jens Axboe4241ea82007-09-12 08:18:36 +0200480 if (f->filetype == FIO_TYPE_CHAR && !read_only)
Jens Axboe2fd233b2007-03-02 08:44:25 +0100481 flags |= O_RDWR;
482 else
483 flags |= O_RDONLY;
484
Jens Axboe66159822007-04-16 21:54:24 +0200485 if (is_std)
486 f->fd = dup(STDIN_FILENO);
Jens Axboe4d4e80f2008-03-04 10:18:56 +0100487 else
488 from_hash = file_lookup_open(f, flags);
Jens Axboe53cdc682006-10-18 11:50:58 +0200489 }
490
491 if (f->fd == -1) {
Jens Axboee4e33252007-03-21 13:07:54 +0100492 char buf[FIO_VERROR_SIZE];
Jens Axboee1161c32007-02-22 19:36:48 +0100493 int __e = errno;
494
Jens Axboe835d9b92009-06-09 15:23:38 +0200495 if (__e == EPERM && (flags & FIO_O_NOATIME)) {
Jens Axboe5921e802008-05-30 15:02:38 +0200496 flags &= ~FIO_O_NOATIME;
Aaron Carroll056f3452007-11-26 09:08:53 +0100497 goto open_again;
498 }
499
Jens Axboee8670ef2008-03-06 12:06:30 +0100500 snprintf(buf, sizeof(buf) - 1, "open(%s)", f->file_name);
Jens Axboee4e33252007-03-21 13:07:54 +0100501
502 td_verror(td, __e, buf);
Jens Axboe53cdc682006-10-18 11:50:58 +0200503 }
504
Jens Axboe29c13492008-03-01 19:25:20 +0100505 if (!from_hash && f->fd != -1) {
506 if (add_file_hash(f)) {
Jens Axboe3f0ca9b2011-05-24 21:36:24 +0200507 int fio_unused ret;
Jens Axboe29c13492008-03-01 19:25:20 +0100508
509 /*
510 * OK to ignore, we haven't done anything with it
511 */
512 ret = generic_close_file(td, f);
513 goto open_again;
514 }
515 }
Jens Axboe4906e0b2008-03-01 18:59:51 +0100516
Jens Axboe53cdc682006-10-18 11:50:58 +0200517 return 0;
Jens Axboeb5af8292007-03-08 12:43:13 +0100518}
519
Jens Axboedf9c26b2009-03-05 10:13:58 +0100520int generic_get_file_size(struct thread_data *td, struct fio_file *f)
Jens Axboe21972cd2006-11-23 12:39:16 +0100521{
Jens Axboedf9c26b2009-03-05 10:13:58 +0100522 return get_file_size(td, f);
Jens Axboe21972cd2006-11-23 12:39:16 +0100523}
524
Jens Axboe7bb48f82007-03-27 15:30:28 +0200525/*
526 * open/close all files, so that ->real_file_size gets set
527 */
Jens Axboebab3fd52007-04-02 10:34:18 +0200528static int get_file_sizes(struct thread_data *td)
Jens Axboe53cdc682006-10-18 11:50:58 +0200529{
530 struct fio_file *f;
Jens Axboeaf52b342007-03-13 10:07:47 +0100531 unsigned int i;
Jens Axboebab3fd52007-04-02 10:34:18 +0200532 int err = 0;
Jens Axboe7bb48f82007-03-27 15:30:28 +0200533
534 for_each_file(td, f, i) {
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100535 dprint(FD_FILE, "get file size for %p/%d/%p\n", f, i,
536 f->file_name);
Jens Axboe9efef3c2008-03-06 10:26:25 +0100537
Jens Axboe99a47c62009-04-07 22:20:56 +0200538 if (td_io_get_file_size(td, f)) {
Jens Axboe40b44f42007-04-11 12:43:35 +0200539 if (td->error != ENOENT) {
540 log_err("%s\n", td->verror);
541 err = 1;
542 }
Jens Axboe541d66d2007-03-27 19:50:11 +0200543 clear_error(td);
Jens Axboe07eb79d2007-04-12 13:02:38 +0200544 }
Jens Axboe409b3412007-03-28 09:57:01 +0200545
546 if (f->real_file_size == -1ULL && td->o.size)
547 f->real_file_size = td->o.size / td->o.nr_files;
Jens Axboe7bb48f82007-03-27 15:30:28 +0200548 }
Jens Axboebab3fd52007-04-02 10:34:18 +0200549
550 return err;
Jens Axboe7bb48f82007-03-27 15:30:28 +0200551}
552
Jens Axboe2e3bd4c2010-05-17 12:29:57 +0200553struct fio_mount {
554 struct flist_head list;
555 const char *base;
556 char __base[256];
557 unsigned int key;
558};
559
560/*
561 * Get free number of bytes for each file on each unique mount.
562 */
563static unsigned long long get_fs_free_counts(struct thread_data *td)
564{
565 struct flist_head *n, *tmp;
Jens Axboe68b03162010-06-24 09:22:41 +0200566 unsigned long long ret = 0;
Jens Axboe2e3bd4c2010-05-17 12:29:57 +0200567 struct fio_mount *fm;
568 FLIST_HEAD(list);
569 struct fio_file *f;
570 unsigned int i;
571
572 for_each_file(td, f, i) {
573 struct stat sb;
574 char buf[256];
575
Jens Axboe4ccdccd2010-06-24 10:27:22 +0200576 if (f->filetype == FIO_TYPE_BD || f->filetype == FIO_TYPE_CHAR) {
577 if (f->real_file_size != -1ULL)
578 ret += f->real_file_size;
Jens Axboe68b03162010-06-24 09:22:41 +0200579 continue;
580 } else if (f->filetype != FIO_TYPE_FILE)
581 continue;
582
Jens Axboe2e3bd4c2010-05-17 12:29:57 +0200583 strcpy(buf, f->file_name);
584
585 if (stat(buf, &sb) < 0) {
586 if (errno != ENOENT)
587 break;
588 strcpy(buf, ".");
589 if (stat(buf, &sb) < 0)
590 break;
591 }
592
593 fm = NULL;
594 flist_for_each(n, &list) {
595 fm = flist_entry(n, struct fio_mount, list);
596 if (fm->key == sb.st_dev)
597 break;
598
599 fm = NULL;
600 }
601
602 if (fm)
603 continue;
604
605 fm = malloc(sizeof(*fm));
606 strcpy(fm->__base, buf);
607 fm->base = basename(fm->__base);
608 fm->key = sb.st_dev;
609 flist_add(&fm->list, &list);
610 }
611
Jens Axboe2e3bd4c2010-05-17 12:29:57 +0200612 flist_for_each_safe(n, tmp, &list) {
613 unsigned long long sz;
614
615 fm = flist_entry(n, struct fio_mount, list);
616 flist_del(&fm->list);
617
618 sz = get_fs_size(fm->base);
619 if (sz && sz != -1ULL)
620 ret += sz;
621
622 free(fm);
623 }
624
625 return ret;
626}
627
Jens Axboe7bb48f82007-03-27 15:30:28 +0200628/*
629 * Open the files and setup files sizes, creating files if necessary.
630 */
631int setup_files(struct thread_data *td)
632{
633 unsigned long long total_size, extend_size;
634 struct fio_file *f;
635 unsigned int i;
Jens Axboe000b0802007-03-27 15:56:10 +0200636 int err = 0, need_extend;
Jens Axboe53cdc682006-10-18 11:50:58 +0200637
Jens Axboeee56ad52008-02-01 10:30:20 +0100638 dprint(FD_FILE, "setup files\n");
639
Jens Axboe691c8fb2008-03-07 14:26:26 +0100640 if (td->o.read_iolog_file)
641 return 0;
642
Jens Axboe53cdc682006-10-18 11:50:58 +0200643 /*
644 * if ioengine defines a setup() method, it's responsible for
Jens Axboe7bb48f82007-03-27 15:30:28 +0200645 * opening the files and setting f->real_file_size to indicate
646 * the valid range for that file.
Jens Axboe53cdc682006-10-18 11:50:58 +0200647 */
648 if (td->io_ops->setup)
Jens Axboe7bb48f82007-03-27 15:30:28 +0200649 err = td->io_ops->setup(td);
650 else
Jens Axboebab3fd52007-04-02 10:34:18 +0200651 err = get_file_sizes(td);
Jens Axboe53cdc682006-10-18 11:50:58 +0200652
Jens Axboef1027062006-10-20 10:14:01 +0200653 if (err)
654 return err;
655
Jens Axboe0a7eb122006-10-20 10:36:42 +0200656 /*
Jens Axboe7bb48f82007-03-27 15:30:28 +0200657 * check sizes. if the files/devices do not exist and the size
658 * isn't passed to fio, abort.
Jens Axboe0a7eb122006-10-20 10:36:42 +0200659 */
Jens Axboe7bb48f82007-03-27 15:30:28 +0200660 total_size = 0;
661 for_each_file(td, f, i) {
662 if (f->real_file_size == -1ULL)
663 total_size = -1ULL;
664 else
665 total_size += f->real_file_size;
666 }
Jens Axboe0a7eb122006-10-20 10:36:42 +0200667
Jens Axboe2e3bd4c2010-05-17 12:29:57 +0200668 if (td->o.fill_device)
669 td->fill_device_size = get_fs_free_counts(td);
670
Jens Axboe7bb48f82007-03-27 15:30:28 +0200671 /*
672 * device/file sizes are zero and no size given, punt
673 */
Jens Axboe1f809d12007-10-25 18:34:02 +0200674 if ((!total_size || total_size == -1ULL) && !td->o.size &&
Shawn Lewisaa31f1f2008-01-11 09:45:11 +0100675 !(td->io_ops->flags & FIO_NOIO) && !td->o.fill_device) {
Jens Axboe7bb48f82007-03-27 15:30:28 +0200676 log_err("%s: you need to specify size=\n", td->o.name);
Jens Axboee1161c32007-02-22 19:36:48 +0100677 td_verror(td, EINVAL, "total_file_size");
Jens Axboe53cdc682006-10-18 11:50:58 +0200678 return 1;
679 }
680
Jens Axboe7bb48f82007-03-27 15:30:28 +0200681 /*
682 * now file sizes are known, so we can set ->io_size. if size= is
683 * not given, ->io_size is just equal to ->real_file_size. if size
684 * is given, ->io_size is size / nr_files.
685 */
686 extend_size = total_size = 0;
687 need_extend = 0;
688 for_each_file(td, f, i) {
ljzhang,Yaxin Hu,Jianchao Tangbcdedd02007-07-27 13:28:26 +0200689 f->file_offset = td->o.start_offset;
690
Jens Axboe7bb48f82007-03-27 15:30:28 +0200691 if (!td->o.file_size_low) {
692 /*
693 * no file size range given, file size is equal to
694 * total size divided by number of files. if that is
695 * zero, set it to the real file size.
696 */
697 f->io_size = td->o.size / td->o.nr_files;
Jens Axboe65bdb102008-01-24 13:13:12 +0100698 if (!f->io_size)
Jens Axboe273f8c92008-01-25 14:02:15 +0100699 f->io_size = f->real_file_size - f->file_offset;
Jens Axboe7bb48f82007-03-27 15:30:28 +0200700 } else if (f->real_file_size < td->o.file_size_low ||
701 f->real_file_size > td->o.file_size_high) {
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100702 if (f->file_offset > td->o.file_size_low)
ljzhang,Yaxin Hu,Jianchao Tangbcdedd02007-07-27 13:28:26 +0200703 goto err_offset;
Jens Axboe7bb48f82007-03-27 15:30:28 +0200704 /*
705 * file size given. if it's fixed, use that. if it's a
706 * range, generate a random size in-between.
707 */
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100708 if (td->o.file_size_low == td->o.file_size_high) {
709 f->io_size = td->o.file_size_low
710 - f->file_offset;
711 } else {
712 f->io_size = get_rand_file_size(td)
713 - f->file_offset;
714 }
Jens Axboe65bdb102008-01-24 13:13:12 +0100715 } else
ljzhang,Yaxin Hu,Jianchao Tangbcdedd02007-07-27 13:28:26 +0200716 f->io_size = f->real_file_size - f->file_offset;
Jens Axboe7bb48f82007-03-27 15:30:28 +0200717
718 if (f->io_size == -1ULL)
719 total_size = -1ULL;
720 else
721 total_size += f->io_size;
722
723 if (f->filetype == FIO_TYPE_FILE &&
ljzhang,Yaxin Hu,Jianchao Tangbcdedd02007-07-27 13:28:26 +0200724 (f->io_size + f->file_offset) > f->real_file_size &&
Jens Axboe7bb48f82007-03-27 15:30:28 +0200725 !(td->io_ops->flags & FIO_DISKLESSIO)) {
Jens Axboe814452b2009-03-04 12:53:13 +0100726 if (!td->o.create_on_open) {
727 need_extend++;
728 extend_size += (f->io_size + f->file_offset);
729 } else
730 f->real_file_size = f->io_size + f->file_offset;
Jens Axboed6aed792009-06-03 08:41:15 +0200731 fio_file_set_extend(f);
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100732 }
Jens Axboe7bb48f82007-03-27 15:30:28 +0200733 }
734
ljzhang,Yaxin Hu,Jianchao Tang22982902007-07-27 13:21:28 +0200735 if (!td->o.size || td->o.size > total_size)
Jens Axboe7bb48f82007-03-27 15:30:28 +0200736 td->o.size = total_size;
737
738 /*
739 * See if we need to extend some files
740 */
741 if (need_extend) {
742 temp_stall_ts = 1;
Shaozhi Shawn Yea7ba8c52008-09-10 09:04:18 +0200743 if (!terse_output)
744 log_info("%s: Laying out IO file(s) (%u file(s) /"
Bruce Cran0f2152c2010-12-15 10:33:03 +0100745 " %lluMB)\n", td->o.name, need_extend,
Shaozhi Shawn Yea7ba8c52008-09-10 09:04:18 +0200746 extend_size >> 20);
Jens Axboe7bb48f82007-03-27 15:30:28 +0200747
748 for_each_file(td, f, i) {
Jens Axboe5e0074c2009-06-02 21:40:09 +0200749 unsigned long long old_len = -1ULL, extend_len = -1ULL;
Jens Axboe3baddf22008-04-04 11:10:30 +0200750
Jens Axboed6aed792009-06-03 08:41:15 +0200751 if (!fio_file_extend(f))
Jens Axboe7bb48f82007-03-27 15:30:28 +0200752 continue;
753
Jens Axboe409b3412007-03-28 09:57:01 +0200754 assert(f->filetype == FIO_TYPE_FILE);
Jens Axboed6aed792009-06-03 08:41:15 +0200755 fio_file_clear_extend(f);
Jens Axboe5e0074c2009-06-02 21:40:09 +0200756 if (!td->o.fill_device) {
757 old_len = f->real_file_size;
Jens Axboe0b9d69e2009-09-11 22:29:54 +0200758 extend_len = f->io_size + f->file_offset -
759 old_len;
Jens Axboe5e0074c2009-06-02 21:40:09 +0200760 }
ljzhang,Yaxin Hu,Jianchao Tangbcdedd02007-07-27 13:28:26 +0200761 f->real_file_size = (f->io_size + f->file_offset);
Jens Axboe7bb48f82007-03-27 15:30:28 +0200762 err = extend_file(td, f);
763 if (err)
764 break;
Jens Axboe5e0074c2009-06-02 21:40:09 +0200765
Jens Axboe3baddf22008-04-04 11:10:30 +0200766 err = __file_invalidate_cache(td, f, old_len,
767 extend_len);
768 close(f->fd);
769 f->fd = -1;
770 if (err)
771 break;
Jens Axboe7bb48f82007-03-27 15:30:28 +0200772 }
773 temp_stall_ts = 0;
774 }
775
776 if (err)
777 return err;
778
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100779 if (!td->o.zone_size)
Jens Axboe7bb48f82007-03-27 15:30:28 +0200780 td->o.zone_size = td->o.size;
Jens Axboe53cdc682006-10-18 11:50:58 +0200781
Jens Axboeea966f82007-09-03 10:09:37 +0200782 /*
783 * iolog already set the total io size, if we read back
784 * stored entries.
785 */
786 if (!td->o.read_iolog_file)
787 td->total_io_size = td->o.size * td->o.loops;
Jens Axboe7bb48f82007-03-27 15:30:28 +0200788 return 0;
ljzhang,Yaxin Hu,Jianchao Tangbcdedd02007-07-27 13:28:26 +0200789err_offset:
790 log_err("%s: you need to specify valid offset=\n", td->o.name);
791 return 1;
Jens Axboe53cdc682006-10-18 11:50:58 +0200792}
793
Zhang, Yanminafad68f2009-05-20 11:30:55 +0200794int pre_read_files(struct thread_data *td)
795{
796 struct fio_file *f;
797 unsigned int i;
798
799 dprint(FD_FILE, "pre_read files\n");
800
801 for_each_file(td, f, i) {
802 pre_read_file(td, f);
803 }
804
805 return 1;
806}
807
Jens Axboe68727072007-03-15 20:49:25 +0100808int init_random_map(struct thread_data *td)
809{
Jens Axboe509eab12007-12-14 12:42:53 +0100810 unsigned long long blocks, num_maps;
Jens Axboe68727072007-03-15 20:49:25 +0100811 struct fio_file *f;
812 unsigned int i;
813
Jens Axboede8dd112008-03-01 15:34:44 +0100814 if (td->o.norandommap || !td_random(td))
Jens Axboe68727072007-03-15 20:49:25 +0100815 return 0;
816
817 for_each_file(td, f, i) {
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100818 blocks = (f->real_file_size + td->o.rw_min_bs - 1) /
819 (unsigned long long) td->o.rw_min_bs;
820 num_maps = (blocks + BLOCKS_PER_MAP - 1) /
821 (unsigned long long) BLOCKS_PER_MAP;
Jens Axboe0ce8b112011-01-27 22:25:29 +0100822 f->file_map = smalloc(num_maps * sizeof(unsigned long));
Jens Axboe303032a2008-03-26 10:11:10 +0100823 if (f->file_map) {
824 f->num_maps = num_maps;
825 continue;
Jens Axboe68727072007-03-15 20:49:25 +0100826 }
Jens Axboe2b386d22008-03-26 10:32:57 +0100827 if (!td->o.softrandommap) {
Jens Axboe68727072007-03-15 20:49:25 +0100828 log_err("fio: failed allocating random map. If running"
829 " a large number of jobs, try the 'norandommap'"
Jens Axboe2b386d22008-03-26 10:32:57 +0100830 " option or set 'softrandommap'. Or give"
831 " a larger --alloc-size to fio.\n");
Jens Axboe68727072007-03-15 20:49:25 +0100832 return 1;
833 }
Jens Axboe303032a2008-03-26 10:11:10 +0100834
835 log_info("fio: file %s failed allocating random map. Running "
836 "job without.\n", f->file_name);
837 f->num_maps = 0;
Jens Axboe68727072007-03-15 20:49:25 +0100838 }
839
840 return 0;
841}
842
Jens Axboe53cdc682006-10-18 11:50:58 +0200843void close_files(struct thread_data *td)
844{
Jens Axboe0ab8db82006-10-18 17:16:23 +0200845 struct fio_file *f;
Jens Axboeaf52b342007-03-13 10:07:47 +0100846 unsigned int i;
Jens Axboe53cdc682006-10-18 11:50:58 +0200847
Jens Axboe2be3eec2009-06-10 09:05:13 +0200848 for_each_file(td, f, i) {
849 if (fio_file_open(f))
850 td_io_close_file(td, f);
851 }
Jens Axboe24ffd2c2008-03-01 15:47:08 +0100852}
853
854void close_and_free_files(struct thread_data *td)
855{
856 struct fio_file *f;
857 unsigned int i;
858
Jens Axboeee56ad52008-02-01 10:30:20 +0100859 dprint(FD_FILE, "close files\n");
860
Jens Axboe0ab8db82006-10-18 17:16:23 +0200861 for_each_file(td, f, i) {
Jens Axboeffdfabd2008-03-26 09:18:14 +0100862 if (td->o.unlink && f->filetype == FIO_TYPE_FILE) {
863 dprint(FD_FILE, "free unlink %s\n", f->file_name);
Jens Axboe132ad462006-11-23 12:23:12 +0100864 unlink(f->file_name);
Jens Axboeffdfabd2008-03-26 09:18:14 +0100865 }
Jens Axboebdb4e2e2007-03-01 09:54:57 +0100866
Jens Axboe22a57ba2009-06-09 14:34:35 +0200867 if (fio_file_open(f))
868 td_io_close_file(td, f);
869
Shaozhi Shawn Yeb9fbcf22008-09-10 09:05:17 +0200870 remove_file_hash(f);
Jens Axboeb3dc7f02007-03-09 12:52:15 +0100871
Jens Axboef17c4392008-03-01 18:40:46 +0100872 sfree(f->file_name);
Jens Axboefa1da862007-03-23 15:20:54 +0100873 f->file_name = NULL;
Jens Axboe61eb3132010-03-31 20:05:59 +0200874 sfree(f->file_map);
875 f->file_map = NULL;
Jens Axboe78d99e62008-03-01 18:41:50 +0100876 sfree(f);
Jens Axboe53cdc682006-10-18 11:50:58 +0200877 }
Jens Axboeb4a6a592006-10-20 13:54:47 +0200878
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100879 td->o.filename = NULL;
Jens Axboecade3ef2007-03-23 15:29:45 +0100880 free(td->files);
Jens Axboe9efef3c2008-03-06 10:26:25 +0100881 td->files_index = 0;
Jens Axboeb4a6a592006-10-20 13:54:47 +0200882 td->files = NULL;
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100883 td->o.nr_files = 0;
Jens Axboe53cdc682006-10-18 11:50:58 +0200884}
Jens Axboeaf52b342007-03-13 10:07:47 +0100885
Jens Axboee3bab462007-03-13 11:22:09 +0100886static void get_file_type(struct fio_file *f)
Jens Axboeaf52b342007-03-13 10:07:47 +0100887{
888 struct stat sb;
889
Jens Axboe66159822007-04-16 21:54:24 +0200890 if (!strcmp(f->file_name, "-"))
891 f->filetype = FIO_TYPE_PIPE;
892 else
893 f->filetype = FIO_TYPE_FILE;
Jens Axboeaf52b342007-03-13 10:07:47 +0100894
Jens Axboeb30d3952010-02-06 23:36:26 +0100895 if (!stat(f->file_name, &sb)) {
Bruce Cranecc314b2011-01-04 10:59:30 +0100896 /* \\.\ is the device namespace in Windows, where every file is
897 * a block device */
898 if (S_ISBLK(sb.st_mode) || strncmp(f->file_name, "\\\\.\\", 4) == 0)
Jens Axboeaf52b342007-03-13 10:07:47 +0100899 f->filetype = FIO_TYPE_BD;
900 else if (S_ISCHR(sb.st_mode))
901 f->filetype = FIO_TYPE_CHAR;
Jens Axboeb5605e92007-04-16 20:42:33 +0200902 else if (S_ISFIFO(sb.st_mode))
903 f->filetype = FIO_TYPE_PIPE;
Jens Axboeaf52b342007-03-13 10:07:47 +0100904 }
905}
906
Jens Axboef29b25a2007-07-23 08:56:43 +0200907int add_file(struct thread_data *td, const char *fname)
Jens Axboeaf52b342007-03-13 10:07:47 +0100908{
Jens Axboe7b4e4fe2007-03-13 12:51:40 +0100909 int cur_files = td->files_index;
Jens Axboebd0ee742007-03-23 14:26:23 +0100910 char file_name[PATH_MAX];
Jens Axboeaf52b342007-03-13 10:07:47 +0100911 struct fio_file *f;
Jens Axboebd0ee742007-03-23 14:26:23 +0100912 int len = 0;
Jens Axboeaf52b342007-03-13 10:07:47 +0100913
Jens Axboeee56ad52008-02-01 10:30:20 +0100914 dprint(FD_FILE, "add file %s\n", fname);
915
Jens Axboef17c4392008-03-01 18:40:46 +0100916 f = smalloc(sizeof(*f));
Jens Axboec48c0be2008-07-31 19:55:02 +0200917 if (!f) {
918 log_err("fio: smalloc OOM\n");
919 assert(0);
920 }
Jens Axboe0b9d69e2009-09-11 22:29:54 +0200921
Jens Axboeaf52b342007-03-13 10:07:47 +0100922 f->fd = -1;
Jens Axboe38dad622010-07-20 14:46:00 -0600923 fio_file_reset(f);
Jens Axboebd0ee742007-03-23 14:26:23 +0100924
Jens Axboefc99bc02009-03-04 15:27:42 +0100925 if (td->files_size <= td->files_index) {
Carl Henrik Lunde4b341fc2009-04-20 08:41:37 +0200926 int new_size = td->o.nr_files + 1;
Jens Axboe126d65c2008-03-01 18:04:31 +0100927
Jens Axboefc99bc02009-03-04 15:27:42 +0100928 dprint(FD_FILE, "resize file array to %d files\n", new_size);
929
930 td->files = realloc(td->files, new_size * sizeof(f));
Jens Axboefc99bc02009-03-04 15:27:42 +0100931 td->files_size = new_size;
932 }
Jens Axboe8bb76792009-03-04 15:37:52 +0100933 td->files[cur_files] = f;
Jens Axboe126d65c2008-03-01 18:04:31 +0100934
Jens Axboe07eb79d2007-04-12 13:02:38 +0200935 /*
936 * init function, io engine may not be loaded yet
937 */
938 if (td->io_ops && (td->io_ops->flags & FIO_DISKLESSIO))
939 f->real_file_size = -1ULL;
940
Jens Axboebd0ee742007-03-23 14:26:23 +0100941 if (td->o.directory)
942 len = sprintf(file_name, "%s/", td->o.directory);
943
944 sprintf(file_name + len, "%s", fname);
Jens Axboef17c4392008-03-01 18:40:46 +0100945 f->file_name = smalloc_strdup(file_name);
Jens Axboec48c0be2008-07-31 19:55:02 +0200946 if (!f->file_name) {
947 log_err("fio: smalloc OOM\n");
948 assert(0);
949 }
Jens Axboe0b9d69e2009-09-11 22:29:54 +0200950
Jens Axboee3bab462007-03-13 11:22:09 +0100951 get_file_type(f);
Jens Axboeaf52b342007-03-13 10:07:47 +0100952
Jens Axboe4d4e80f2008-03-04 10:18:56 +0100953 switch (td->o.file_lock_mode) {
954 case FILE_LOCK_NONE:
955 break;
956 case FILE_LOCK_READWRITE:
957 f->lock = fio_mutex_rw_init();
958 break;
959 case FILE_LOCK_EXCLUSIVE:
960 f->lock = fio_mutex_init(1);
961 break;
962 default:
963 log_err("fio: unknown lock mode: %d\n", td->o.file_lock_mode);
964 assert(0);
965 }
Jens Axboe29c13492008-03-01 19:25:20 +0100966
Jens Axboe7b4e4fe2007-03-13 12:51:40 +0100967 td->files_index++;
Jens Axboe15494412007-03-13 11:52:47 +0100968 if (f->filetype == FIO_TYPE_FILE)
969 td->nr_normal_files++;
Jens Axboef29b25a2007-07-23 08:56:43 +0200970
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100971 dprint(FD_FILE, "file %p \"%s\" added at %d\n", f, f->file_name,
972 cur_files);
Jens Axboe9efef3c2008-03-06 10:26:25 +0100973
Jens Axboef29b25a2007-07-23 08:56:43 +0200974 return cur_files;
Jens Axboeaf52b342007-03-13 10:07:47 +0100975}
Jens Axboe0ad920e2007-03-13 11:06:45 +0100976
Jens Axboe49ffb4a2010-08-24 15:01:37 +0200977int add_file_exclusive(struct thread_data *td, const char *fname)
978{
979 struct fio_file *f;
980 unsigned int i;
981
982 for_each_file(td, f, i) {
983 if (!strcmp(f->file_name, fname))
984 return i;
985 }
986
987 return add_file(td, fname);
988}
989
Jens Axboe0ad920e2007-03-13 11:06:45 +0100990void get_file(struct fio_file *f)
991{
Jens Axboe8172fe92008-02-01 21:51:02 +0100992 dprint(FD_FILE, "get file %s, ref=%d\n", f->file_name, f->references);
Jens Axboed6aed792009-06-03 08:41:15 +0200993 assert(fio_file_open(f));
Jens Axboe0ad920e2007-03-13 11:06:45 +0100994 f->references++;
995}
996
Jens Axboe6977bcd2008-03-01 15:55:36 +0100997int put_file(struct thread_data *td, struct fio_file *f)
Jens Axboe0ad920e2007-03-13 11:06:45 +0100998{
Jens Axboe98e1ac42008-03-06 11:56:48 +0100999 int f_ret = 0, ret = 0;
Jens Axboe6977bcd2008-03-01 15:55:36 +01001000
Jens Axboe8172fe92008-02-01 21:51:02 +01001001 dprint(FD_FILE, "put file %s, ref=%d\n", f->file_name, f->references);
Jens Axboeee56ad52008-02-01 10:30:20 +01001002
Jens Axboe22a57ba2009-06-09 14:34:35 +02001003 if (!fio_file_open(f)) {
1004 assert(f->fd == -1);
Jens Axboe6977bcd2008-03-01 15:55:36 +01001005 return 0;
Jens Axboe22a57ba2009-06-09 14:34:35 +02001006 }
Jens Axboe0ad920e2007-03-13 11:06:45 +01001007
1008 assert(f->references);
1009 if (--f->references)
Jens Axboe6977bcd2008-03-01 15:55:36 +01001010 return 0;
Jens Axboe0ad920e2007-03-13 11:06:45 +01001011
Jens Axboed424d4d2007-04-17 09:05:10 +02001012 if (should_fsync(td) && td->o.fsync_on_close)
Jens Axboe98e1ac42008-03-06 11:56:48 +01001013 f_ret = fsync(f->fd);
Jens Axboeebb14152007-03-13 14:42:15 +01001014
Jens Axboe0ad920e2007-03-13 11:06:45 +01001015 if (td->io_ops->close_file)
Jens Axboe6977bcd2008-03-01 15:55:36 +01001016 ret = td->io_ops->close_file(td, f);
Jens Axboe1020a132007-03-29 11:15:06 +02001017
Jens Axboe98e1ac42008-03-06 11:56:48 +01001018 if (!ret)
Jens Axboea5fb4612008-05-28 10:54:01 +02001019 ret = f_ret;
Jens Axboe98e1ac42008-03-06 11:56:48 +01001020
Jens Axboe0ad920e2007-03-13 11:06:45 +01001021 td->nr_open_files--;
Jens Axboed6aed792009-06-03 08:41:15 +02001022 fio_file_clear_open(f);
Jens Axboe22a57ba2009-06-09 14:34:35 +02001023 assert(f->fd == -1);
Jens Axboe6977bcd2008-03-01 15:55:36 +01001024 return ret;
Jens Axboe0ad920e2007-03-13 11:06:45 +01001025}
Jens Axboebbf6b542007-03-13 15:28:55 +01001026
Jens Axboe4d4e80f2008-03-04 10:18:56 +01001027void lock_file(struct thread_data *td, struct fio_file *f, enum fio_ddir ddir)
Jens Axboeb2bd2bd2008-03-01 18:19:52 +01001028{
Jens Axboe4d4e80f2008-03-04 10:18:56 +01001029 if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE)
1030 return;
Jens Axboe29c13492008-03-01 19:25:20 +01001031
Jens Axboe4d4e80f2008-03-04 10:18:56 +01001032 if (f->lock_owner == td && f->lock_batch--)
1033 return;
1034
1035 if (td->o.file_lock_mode == FILE_LOCK_READWRITE) {
1036 if (ddir == DDIR_READ)
1037 fio_mutex_down_read(f->lock);
1038 else
1039 fio_mutex_down_write(f->lock);
1040 } else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE)
1041 fio_mutex_down(f->lock);
1042
1043 f->lock_owner = td;
1044 f->lock_batch = td->o.lockfile_batch;
1045 f->lock_ddir = ddir;
1046}
1047
1048void unlock_file(struct thread_data *td, struct fio_file *f)
1049{
1050 if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE)
1051 return;
1052 if (f->lock_batch)
1053 return;
1054
1055 if (td->o.file_lock_mode == FILE_LOCK_READWRITE) {
1056 const int is_read = f->lock_ddir == DDIR_READ;
1057 int val = fio_mutex_getval(f->lock);
1058
1059 if ((is_read && val == 1) || (!is_read && val == -1))
1060 f->lock_owner = NULL;
1061
1062 if (is_read)
1063 fio_mutex_up_read(f->lock);
1064 else
1065 fio_mutex_up_write(f->lock);
1066 } else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE) {
1067 int val = fio_mutex_getval(f->lock);
1068
1069 if (val == 0)
1070 f->lock_owner = NULL;
1071
1072 fio_mutex_up(f->lock);
Jens Axboe29c13492008-03-01 19:25:20 +01001073 }
Jens Axboeb2bd2bd2008-03-01 18:19:52 +01001074}
1075
Jens Axboe4d4e80f2008-03-04 10:18:56 +01001076void unlock_file_all(struct thread_data *td, struct fio_file *f)
Jens Axboeb2bd2bd2008-03-01 18:19:52 +01001077{
Jens Axboe4d4e80f2008-03-04 10:18:56 +01001078 if (f->lock_owner != td)
1079 return;
Jens Axboe29c13492008-03-01 19:25:20 +01001080
Jens Axboe4d4e80f2008-03-04 10:18:56 +01001081 f->lock_batch = 0;
1082 unlock_file(td, f);
Jens Axboeb2bd2bd2008-03-01 18:19:52 +01001083}
1084
Jens Axboebbf6b542007-03-13 15:28:55 +01001085static int recurse_dir(struct thread_data *td, const char *dirname)
1086{
1087 struct dirent *dir;
1088 int ret = 0;
1089 DIR *D;
1090
1091 D = opendir(dirname);
1092 if (!D) {
Jens Axboe0ddb2702007-03-27 19:43:53 +02001093 char buf[FIO_VERROR_SIZE];
1094
1095 snprintf(buf, FIO_VERROR_SIZE - 1, "opendir(%s)", dirname);
1096 td_verror(td, errno, buf);
Jens Axboebbf6b542007-03-13 15:28:55 +01001097 return 1;
1098 }
1099
1100 while ((dir = readdir(D)) != NULL) {
1101 char full_path[PATH_MAX];
1102 struct stat sb;
1103
Jens Axboee85b2b82007-03-14 09:39:06 +01001104 if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, ".."))
1105 continue;
Jens Axboe96d32d52007-03-14 09:16:09 +01001106
Jens Axboebbf6b542007-03-13 15:28:55 +01001107 sprintf(full_path, "%s/%s", dirname, dir->d_name);
1108
1109 if (lstat(full_path, &sb) == -1) {
1110 if (errno != ENOENT) {
1111 td_verror(td, errno, "stat");
1112 return 1;
1113 }
1114 }
1115
1116 if (S_ISREG(sb.st_mode)) {
1117 add_file(td, full_path);
Jens Axboe2dc1bbe2007-03-15 15:01:33 +01001118 td->o.nr_files++;
Jens Axboebbf6b542007-03-13 15:28:55 +01001119 continue;
1120 }
Jens Axboe0ddb2702007-03-27 19:43:53 +02001121 if (!S_ISDIR(sb.st_mode))
1122 continue;
Jens Axboebbf6b542007-03-13 15:28:55 +01001123
Jens Axboe5ec10ea2008-03-06 15:42:00 +01001124 ret = recurse_dir(td, full_path);
1125 if (ret)
Jens Axboebbf6b542007-03-13 15:28:55 +01001126 break;
1127 }
1128
1129 closedir(D);
1130 return ret;
1131}
1132
1133int add_dir_files(struct thread_data *td, const char *path)
1134{
Jens Axboe0ddb2702007-03-27 19:43:53 +02001135 int ret = recurse_dir(td, path);
1136
1137 if (!ret)
1138 log_info("fio: opendir added %d files\n", td->o.nr_files);
1139
1140 return ret;
Jens Axboebbf6b542007-03-13 15:28:55 +01001141}
Jens Axboecade3ef2007-03-23 15:29:45 +01001142
1143void dup_files(struct thread_data *td, struct thread_data *org)
1144{
1145 struct fio_file *f;
1146 unsigned int i;
Jens Axboe9efef3c2008-03-06 10:26:25 +01001147
1148 dprint(FD_FILE, "dup files: %d\n", org->files_index);
Jens Axboecade3ef2007-03-23 15:29:45 +01001149
1150 if (!org->files)
1151 return;
1152
Jens Axboe9efef3c2008-03-06 10:26:25 +01001153 td->files = malloc(org->files_index * sizeof(f));
Jens Axboecade3ef2007-03-23 15:29:45 +01001154
Jens Axboe9efef3c2008-03-06 10:26:25 +01001155 for_each_file(org, f, i) {
Jens Axboeb0fe4212008-03-01 18:22:27 +01001156 struct fio_file *__f;
1157
Jens Axboef17c4392008-03-01 18:40:46 +01001158 __f = smalloc(sizeof(*__f));
Jens Axboec48c0be2008-07-31 19:55:02 +02001159 if (!__f) {
1160 log_err("fio: smalloc OOM\n");
1161 assert(0);
1162 }
Jens Axboe22a57ba2009-06-09 14:34:35 +02001163 __f->fd = -1;
Jens Axboe38dad622010-07-20 14:46:00 -06001164 fio_file_reset(__f);
Jens Axboe0b9d69e2009-09-11 22:29:54 +02001165
Aaron Carrollbc3456f2008-06-25 09:20:37 +02001166 if (f->file_name) {
Jens Axboef17c4392008-03-01 18:40:46 +01001167 __f->file_name = smalloc_strdup(f->file_name);
Jens Axboec48c0be2008-07-31 19:55:02 +02001168 if (!__f->file_name) {
1169 log_err("fio: smalloc OOM\n");
1170 assert(0);
1171 }
Jens Axboe0b9d69e2009-09-11 22:29:54 +02001172
Aaron Carrollbc3456f2008-06-25 09:20:37 +02001173 __f->filetype = f->filetype;
1174 }
Jens Axboeb0fe4212008-03-01 18:22:27 +01001175
1176 td->files[i] = __f;
Jens Axboecade3ef2007-03-23 15:29:45 +01001177 }
1178}
Jens Axboef29b25a2007-07-23 08:56:43 +02001179
1180/*
1181 * Returns the index that matches the filename, or -1 if not there
1182 */
1183int get_fileno(struct thread_data *td, const char *fname)
1184{
1185 struct fio_file *f;
1186 unsigned int i;
1187
1188 for_each_file(td, f, i)
1189 if (!strcmp(f->file_name, fname))
1190 return i;
1191
1192 return -1;
1193}
1194
1195/*
1196 * For log usage, where we add/open/close files automatically
1197 */
1198void free_release_files(struct thread_data *td)
1199{
1200 close_files(td);
1201 td->files_index = 0;
1202 td->nr_normal_files = 0;
1203}