Commit | Line | Data |
---|---|---|
ebac4655 JA |
1 | #ifndef FIO_H |
2 | #define FIO_H | |
3 | ||
4 | #include <sched.h> | |
5 | #include <limits.h> | |
6 | #include <pthread.h> | |
7 | #include <sys/time.h> | |
8 | #include <sys/resource.h> | |
3c39a379 JA |
9 | #include <errno.h> |
10 | #include <stdlib.h> | |
11 | #include <stdio.h> | |
6d6f031f | 12 | #include <unistd.h> |
34cfcdaf | 13 | #include <string.h> |
ebac4655 JA |
14 | |
15 | #include "list.h" | |
16 | #include "md5.h" | |
17 | #include "crc32.h" | |
18 | #include "arch.h" | |
19 | #include "os.h" | |
20 | ||
1e97cce9 JA |
21 | enum fio_ddir { |
22 | DDIR_READ = 0, | |
23 | DDIR_WRITE, | |
24 | DDIR_SYNC, | |
25 | }; | |
26 | ||
ebac4655 | 27 | struct io_stat { |
ebac4655 JA |
28 | unsigned long max_val; |
29 | unsigned long min_val; | |
30 | unsigned long samples; | |
68704084 JA |
31 | |
32 | double mean; | |
33 | double S; | |
ebac4655 JA |
34 | }; |
35 | ||
36 | struct io_sample { | |
37 | unsigned long time; | |
38 | unsigned long val; | |
1e97cce9 | 39 | enum fio_ddir ddir; |
ebac4655 JA |
40 | }; |
41 | ||
42 | struct io_log { | |
43 | unsigned long nr_samples; | |
44 | unsigned long max_samples; | |
45 | struct io_sample *log; | |
46 | }; | |
47 | ||
48 | struct io_piece { | |
49 | struct list_head list; | |
53cdc686 | 50 | struct fio_file *file; |
ebac4655 JA |
51 | unsigned long long offset; |
52 | unsigned int len; | |
1e97cce9 | 53 | enum fio_ddir ddir; |
ebac4655 JA |
54 | }; |
55 | ||
56 | /* | |
57 | * The io unit | |
58 | */ | |
59 | struct io_u { | |
60 | union { | |
61 | #ifdef FIO_HAVE_LIBAIO | |
62 | struct iocb iocb; | |
63 | #endif | |
64 | #ifdef FIO_HAVE_POSIXAIO | |
65 | struct aiocb aiocb; | |
66 | #endif | |
67 | #ifdef FIO_HAVE_SGIO | |
68 | struct sg_io_hdr hdr; | |
69 | #endif | |
70 | }; | |
71 | struct timeval start_time; | |
72 | struct timeval issue_time; | |
73 | ||
6b9cea23 | 74 | void *buf; |
ebac4655 JA |
75 | unsigned int buflen; |
76 | unsigned long long offset; | |
77 | ||
78 | unsigned int resid; | |
79 | unsigned int error; | |
80 | ||
1e97cce9 | 81 | enum fio_ddir ddir; |
ebac4655 | 82 | |
dfd7bc2c JA |
83 | /* |
84 | * io engine private data | |
85 | */ | |
86 | union { | |
87 | unsigned int index; | |
88 | unsigned int seen; | |
89 | }; | |
90 | ||
53cdc686 JA |
91 | struct fio_file *file; |
92 | ||
ebac4655 JA |
93 | struct list_head list; |
94 | }; | |
95 | ||
96 | #define FIO_HDR_MAGIC 0xf00baaef | |
97 | ||
98 | enum { | |
99 | VERIFY_NONE = 0, | |
100 | VERIFY_MD5, | |
101 | VERIFY_CRC32, | |
102 | }; | |
103 | ||
104 | struct verify_header { | |
105 | unsigned int fio_magic; | |
106 | unsigned int len; | |
107 | unsigned int verify_type; | |
108 | union { | |
109 | char md5_digest[MD5_HASH_WORDS * 4]; | |
110 | unsigned long crc32; | |
111 | }; | |
112 | }; | |
113 | ||
114 | struct group_run_stats { | |
9104f874 JA |
115 | unsigned long long max_run[2], min_run[2]; |
116 | unsigned long long max_bw[2], min_bw[2]; | |
e9b2a3fa | 117 | unsigned long long io_kb[2]; |
9104f874 | 118 | unsigned long long agg[2]; |
ebac4655 JA |
119 | }; |
120 | ||
e9c047a0 JA |
121 | /* |
122 | * What type of allocation to use for io buffers | |
123 | */ | |
124 | enum fio_memtype { | |
125 | MEM_MALLOC = 0, /* ordinary malloc */ | |
126 | MEM_SHM, /* use shared memory segments */ | |
74b025b0 | 127 | MEM_SHMHUGE, /* use shared memory segments with huge pages */ |
e9c047a0 | 128 | MEM_MMAP, /* use anonynomous mmap */ |
d0bdaf49 | 129 | MEM_MMAPHUGE, /* memory mapped huge file */ |
e9c047a0 JA |
130 | }; |
131 | ||
132 | /* | |
133 | * The type of object we are working on | |
134 | */ | |
135 | enum fio_filetype { | |
136 | FIO_TYPE_FILE = 1, | |
137 | FIO_TYPE_BD, | |
138 | FIO_TYPE_CHAR, | |
139 | }; | |
140 | ||
2866c82d | 141 | enum fio_ioengine_flags { |
e9c047a0 | 142 | FIO_SYNCIO = 1 << 0, |
2866c82d JA |
143 | FIO_CPUIO = 1 << 1, |
144 | FIO_MMAPIO = 1 << 2, | |
b2a15192 | 145 | FIO_RAWIO = 1 << 3, |
e9c047a0 JA |
146 | }; |
147 | ||
53cdc686 JA |
148 | struct fio_file { |
149 | /* | |
150 | * A file may not be a file descriptor, let the io engine decide | |
151 | */ | |
152 | union { | |
153 | unsigned long file_data; | |
154 | int fd; | |
155 | }; | |
156 | char *file_name; | |
157 | void *mmap; | |
158 | unsigned long long file_size; | |
159 | unsigned long long real_file_size; | |
160 | unsigned long long file_offset; | |
161 | unsigned long long last_pos; | |
02bcaa8c | 162 | unsigned long long last_completed_pos; |
53cdc686 JA |
163 | |
164 | unsigned long *file_map; | |
165 | unsigned int num_maps; | |
9b031dc8 JA |
166 | |
167 | unsigned int unlink; | |
53cdc686 JA |
168 | }; |
169 | ||
e9c047a0 JA |
170 | /* |
171 | * This describes a single thread/process executing a fio job. | |
172 | */ | |
ebac4655 | 173 | struct thread_data { |
b4692828 | 174 | char *name; |
ef899b63 | 175 | char *directory; |
13f8e2d2 | 176 | char *filename; |
ebac4655 JA |
177 | char verror[80]; |
178 | pthread_t thread; | |
179 | int thread_number; | |
180 | int groupid; | |
e9c047a0 | 181 | enum fio_filetype filetype; |
53cdc686 JA |
182 | struct fio_file *files; |
183 | unsigned int nr_files; | |
13f8e2d2 | 184 | unsigned int nr_uniq_files; |
53cdc686 | 185 | unsigned int next_file; |
ebac4655 | 186 | int error; |
ebac4655 JA |
187 | pid_t pid; |
188 | char *orig_buffer; | |
189 | size_t orig_buffer_size; | |
190 | volatile int terminate; | |
191 | volatile int runstate; | |
e9c047a0 | 192 | enum fio_ddir ddir; |
3d60d1ed | 193 | unsigned int iomix; |
ebac4655 | 194 | unsigned int ioprio; |
87dc1ab1 | 195 | unsigned int last_was_sync; |
e9c047a0 | 196 | |
9158d2f7 JA |
197 | unsigned int sequential; |
198 | unsigned int odirect; | |
199 | unsigned int invalidate_cache; | |
200 | unsigned int create_serialize; | |
201 | unsigned int create_fsync; | |
202 | unsigned int end_fsync; | |
203 | unsigned int sync_io; | |
204 | unsigned int verify; | |
205 | unsigned int use_thread; | |
206 | unsigned int unlink; | |
207 | unsigned int do_disk_util; | |
208 | unsigned int override_sync; | |
209 | unsigned int rand_repeatable; | |
210 | unsigned int write_lat_log; | |
211 | unsigned int write_bw_log; | |
bb8895e0 | 212 | unsigned int norandommap; |
690adba3 | 213 | unsigned int bs_unaligned; |
e9c047a0 | 214 | |
a00735e6 JA |
215 | unsigned int bs[2]; |
216 | unsigned int min_bs[2]; | |
217 | unsigned int max_bs[2]; | |
56bb17f2 | 218 | unsigned int hugepage_size; |
a00735e6 | 219 | unsigned int rw_min_bs; |
ebac4655 | 220 | unsigned int thinktime; |
9c1f7434 | 221 | unsigned int thinktime_blocks; |
ebac4655 JA |
222 | unsigned int fsync_blocks; |
223 | unsigned int start_delay; | |
906c8d75 | 224 | unsigned long timeout; |
ebac4655 | 225 | unsigned int overwrite; |
ebac4655 | 226 | unsigned int bw_avg_time; |
ebac4655 | 227 | unsigned int loops; |
20dc95c4 JA |
228 | unsigned long long zone_size; |
229 | unsigned long long zone_skip; | |
e9c047a0 | 230 | enum fio_memtype mem_type; |
313cb206 JA |
231 | char *mmapfile; |
232 | int mmapfd; | |
ebac4655 JA |
233 | unsigned int stonewall; |
234 | unsigned int numjobs; | |
ebac4655 JA |
235 | unsigned int iodepth; |
236 | os_cpu_mask_t cpumask; | |
aea47d44 | 237 | unsigned int iolog; |
843a7413 | 238 | unsigned int read_iolog; |
a6ccc7be JA |
239 | unsigned int rwmixcycle; |
240 | unsigned int rwmixread; | |
e1f36503 | 241 | unsigned int rwmixwrite; |
b6f4d880 | 242 | unsigned int nice; |
aea47d44 | 243 | |
076efc7c JA |
244 | char *read_iolog_file; |
245 | char *write_iolog_file; | |
843a7413 JA |
246 | void *iolog_buf; |
247 | FILE *iolog_f; | |
ebac4655 | 248 | |
da86774e | 249 | char *sysfs_root; |
da86774e JA |
250 | char *ioscheduler; |
251 | ||
6dfd46b9 JA |
252 | os_random_state_t bsrange_state; |
253 | os_random_state_t verify_state; | |
ebac4655 JA |
254 | |
255 | int shm_id; | |
256 | ||
e9c047a0 JA |
257 | /* |
258 | * IO engine hooks, contains everything needed to submit an io_u | |
259 | * to any of the available IO engines. | |
260 | */ | |
2866c82d | 261 | struct ioengine_ops *io_ops; |
ebac4655 | 262 | |
e9c047a0 JA |
263 | /* |
264 | * Current IO depth and list of free and busy io_u's. | |
265 | */ | |
ebac4655 JA |
266 | unsigned int cur_depth; |
267 | struct list_head io_u_freelist; | |
268 | struct list_head io_u_busylist; | |
269 | ||
e9c047a0 JA |
270 | /* |
271 | * Rate state | |
272 | */ | |
ebac4655 JA |
273 | unsigned int rate; |
274 | unsigned int ratemin; | |
275 | unsigned int ratecycle; | |
276 | unsigned long rate_usec_cycle; | |
277 | long rate_pending_usleep; | |
278 | unsigned long rate_bytes; | |
279 | struct timeval lastrate; | |
280 | ||
281 | unsigned long runtime[2]; /* msec */ | |
282 | unsigned long long io_size; | |
53cdc686 JA |
283 | unsigned long long total_file_size; |
284 | unsigned long long start_offset; | |
ebac4655 JA |
285 | unsigned long long total_io_size; |
286 | ||
9104f874 JA |
287 | unsigned long long io_blocks[2]; |
288 | unsigned long long io_bytes[2]; | |
289 | unsigned long long zone_bytes; | |
290 | unsigned long long this_io_bytes[2]; | |
bbfd6b00 | 291 | volatile int mutex; |
ebac4655 | 292 | |
e9c047a0 JA |
293 | /* |
294 | * State for random io, a bitmap of blocks done vs not done | |
295 | */ | |
6dfd46b9 | 296 | os_random_state_t random_state; |
ebac4655 | 297 | |
b990b5c0 JA |
298 | /* |
299 | * CPU "io" cycle burner | |
300 | */ | |
301 | unsigned int cpuload; | |
302 | unsigned int cpucycle; | |
303 | ||
ebac4655 JA |
304 | /* |
305 | * bandwidth and latency stats | |
306 | */ | |
307 | struct io_stat clat_stat[2]; /* completion latency */ | |
308 | struct io_stat slat_stat[2]; /* submission latency */ | |
309 | struct io_stat bw_stat[2]; /* bandwidth stats */ | |
310 | ||
9104f874 | 311 | unsigned long long stat_io_bytes[2]; |
ebac4655 JA |
312 | struct timeval stat_sample_time[2]; |
313 | ||
314 | struct io_log *slat_log; | |
315 | struct io_log *clat_log; | |
316 | struct io_log *bw_log; | |
317 | ||
318 | struct timeval start; /* start of this loop */ | |
319 | struct timeval epoch; /* time job was started */ | |
69008999 | 320 | struct timeval end_time;/* time job ended */ |
ebac4655 | 321 | |
e9c047a0 JA |
322 | /* |
323 | * fio system usage accounting | |
324 | */ | |
ebac4655 JA |
325 | struct rusage ru_start; |
326 | struct rusage ru_end; | |
327 | unsigned long usr_time; | |
328 | unsigned long sys_time; | |
329 | unsigned long ctx; | |
330 | ||
e9c047a0 JA |
331 | /* |
332 | * read/write mixed workload state | |
333 | */ | |
6dfd46b9 | 334 | os_random_state_t rwmix_state; |
a6ccc7be | 335 | struct timeval rwmix_switch; |
e9c047a0 | 336 | enum fio_ddir rwmix_ddir; |
a6ccc7be | 337 | |
4e0ba8af JA |
338 | /* |
339 | * Pre-run and post-run shell | |
340 | */ | |
341 | char *exec_prerun; | |
342 | char *exec_postrun; | |
343 | ||
e9c047a0 JA |
344 | /* |
345 | * IO historic logs | |
346 | */ | |
ebac4655 | 347 | struct list_head io_hist_list; |
aea47d44 | 348 | struct list_head io_log_list; |
ebac4655 JA |
349 | }; |
350 | ||
b990b5c0 | 351 | #define __td_verror(td, err, msg) \ |
ebac4655 JA |
352 | do { \ |
353 | int e = (err); \ | |
354 | (td)->error = e; \ | |
b990b5c0 | 355 | snprintf(td->verror, sizeof(td->verror) - 1, "file:%s:%d, error=%s", __FILE__, __LINE__, (msg)); \ |
ebac4655 JA |
356 | } while (0) |
357 | ||
b990b5c0 JA |
358 | |
359 | #define td_verror(td, err) __td_verror((td), (err), strerror((err))) | |
360 | #define td_vmsg(td, err, msg) __td_verror((td), (err), (msg)) | |
361 | ||
ebac4655 JA |
362 | extern int exitall_on_terminate; |
363 | extern int thread_number; | |
364 | extern int shm_id; | |
365 | extern int groupid; | |
c6ae0a5b | 366 | extern int terse_output; |
eb8bbf48 JA |
367 | extern FILE *f_out; |
368 | extern FILE *f_err; | |
53cdc686 | 369 | extern int temp_stall_ts; |
1e97cce9 | 370 | extern unsigned long long mlock_size; |
ebac4655 JA |
371 | |
372 | extern struct thread_data *threads; | |
373 | ||
ebac4655 JA |
374 | #define td_read(td) ((td)->ddir == DDIR_READ) |
375 | #define td_write(td) ((td)->ddir == DDIR_WRITE) | |
3d60d1ed | 376 | #define td_rw(td) ((td)->iomix != 0) |
ebac4655 JA |
377 | |
378 | #define BLOCKS_PER_MAP (8 * sizeof(long)) | |
a00735e6 | 379 | #define TO_MAP_BLOCK(td, f, b) ((b) - ((f)->file_offset / (td)->rw_min_bs)) |
53cdc686 JA |
380 | #define RAND_MAP_IDX(td, f, b) (TO_MAP_BLOCK(td, f, b) / BLOCKS_PER_MAP) |
381 | #define RAND_MAP_BIT(td, f, b) (TO_MAP_BLOCK(td, f, b) & (BLOCKS_PER_MAP - 1)) | |
ebac4655 JA |
382 | |
383 | #define MAX_JOBS (1024) | |
384 | ||
87dc1ab1 JA |
385 | static inline int should_fsync(struct thread_data *td) |
386 | { | |
387 | if (td->last_was_sync) | |
388 | return 0; | |
389 | if (td->odirect) | |
390 | return 0; | |
391 | if (td_write(td) || td_rw(td) || td->override_sync) | |
392 | return 1; | |
393 | ||
394 | return 0; | |
395 | } | |
396 | ||
ebac4655 JA |
397 | struct disk_util_stat { |
398 | unsigned ios[2]; | |
399 | unsigned merges[2]; | |
400 | unsigned long long sectors[2]; | |
401 | unsigned ticks[2]; | |
402 | unsigned io_ticks; | |
403 | unsigned time_in_queue; | |
404 | }; | |
405 | ||
406 | struct disk_util { | |
407 | struct list_head list; | |
408 | ||
409 | char *name; | |
410 | char path[256]; | |
411 | dev_t dev; | |
412 | ||
413 | struct disk_util_stat dus; | |
414 | struct disk_util_stat last_dus; | |
415 | ||
416 | unsigned long msec; | |
417 | struct timeval time; | |
418 | }; | |
419 | ||
420 | struct io_completion_data { | |
421 | int nr; /* input */ | |
422 | ||
423 | int error; /* output */ | |
424 | unsigned long bytes_done[2]; /* output */ | |
02bcaa8c | 425 | struct timeval time; /* output */ |
ebac4655 JA |
426 | }; |
427 | ||
428 | #define DISK_UTIL_MSEC (250) | |
429 | ||
6a0106a0 JA |
430 | #ifndef min |
431 | #define min(a, b) ((a) < (b) ? (a) : (b)) | |
432 | #endif | |
a00735e6 JA |
433 | #ifndef max |
434 | #define max(a, b) ((a) > (b) ? (a) : (b)) | |
435 | #endif | |
6a0106a0 | 436 | |
6796209a JA |
437 | /* |
438 | * Log exports | |
439 | */ | |
440 | extern int read_iolog_get(struct thread_data *, struct io_u *); | |
441 | extern void write_iolog_put(struct thread_data *, struct io_u *); | |
442 | extern int init_iolog(struct thread_data *td); | |
443 | extern void log_io_piece(struct thread_data *, struct io_u *); | |
444 | extern void prune_io_piece_log(struct thread_data *); | |
445 | extern void write_iolog_close(struct thread_data *); | |
446 | ||
447 | /* | |
448 | * Logging | |
449 | */ | |
1e97cce9 JA |
450 | extern void add_clat_sample(struct thread_data *, enum fio_ddir, unsigned long); |
451 | extern void add_slat_sample(struct thread_data *, enum fio_ddir, unsigned long); | |
452 | extern void add_bw_sample(struct thread_data *, enum fio_ddir, struct timeval *); | |
6796209a JA |
453 | extern void show_run_stats(void); |
454 | extern void init_disk_util(struct thread_data *); | |
455 | extern void update_rusage_stat(struct thread_data *); | |
456 | extern void update_io_ticks(void); | |
457 | extern void disk_util_timer_arm(void); | |
8914a9d8 JA |
458 | extern void setup_log(struct io_log **); |
459 | extern void finish_log(struct thread_data *, struct io_log *, const char *); | |
460 | extern int setup_rate(struct thread_data *); | |
6796209a JA |
461 | |
462 | /* | |
463 | * Time functions | |
464 | */ | |
465 | extern unsigned long utime_since(struct timeval *, struct timeval *); | |
69008999 | 466 | extern unsigned long utime_since_now(struct timeval *); |
6796209a JA |
467 | extern unsigned long mtime_since(struct timeval *, struct timeval *); |
468 | extern unsigned long mtime_since_now(struct timeval *); | |
469 | extern unsigned long time_since_now(struct timeval *); | |
263e529f | 470 | extern unsigned long mtime_since_genesis(void); |
b990b5c0 | 471 | extern void __usec_sleep(unsigned int); |
6796209a | 472 | extern void usec_sleep(struct thread_data *, unsigned long); |
a00735e6 | 473 | extern void rate_throttle(struct thread_data *, unsigned long, unsigned int, int); |
6043c579 | 474 | extern void fill_start_time(struct timeval *); |
02bcaa8c | 475 | extern void fio_gettime(struct timeval *, void *); |
6796209a | 476 | |
8914a9d8 JA |
477 | /* |
478 | * Init functions | |
479 | */ | |
480 | extern int parse_options(int, char **); | |
481 | extern int init_random_state(struct thread_data *); | |
482 | ||
53cdc686 JA |
483 | /* |
484 | * File setup/shutdown | |
485 | */ | |
486 | extern void close_files(struct thread_data *); | |
487 | extern int setup_files(struct thread_data *); | |
21972cde | 488 | extern int open_files(struct thread_data *); |
e5b401d4 | 489 | extern int file_invalidate_cache(struct thread_data *, struct fio_file *); |
53cdc686 | 490 | |
263e529f JA |
491 | /* |
492 | * ETA/status stuff | |
493 | */ | |
494 | extern void print_thread_status(void); | |
495 | extern void print_status_init(int); | |
496 | ||
497 | /* | |
498 | * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it | |
499 | * will never back again. It may cycle between running/verififying/fsyncing. | |
500 | * Once the thread reaches TD_EXITED, it is just waiting for the core to | |
501 | * reap it. | |
502 | */ | |
503 | enum { | |
504 | TD_NOT_CREATED = 0, | |
505 | TD_CREATED, | |
506 | TD_INITIALIZED, | |
507 | TD_RUNNING, | |
508 | TD_VERIFYING, | |
509 | TD_FSYNCING, | |
510 | TD_EXITED, | |
511 | TD_REAPED, | |
512 | }; | |
513 | ||
e29d1b70 JA |
514 | /* |
515 | * Verify helpers | |
516 | */ | |
517 | extern void populate_verify_io_u(struct thread_data *, struct io_u *); | |
518 | extern int get_next_verify(struct thread_data *td, struct io_u *); | |
a9619d44 | 519 | extern int do_io_u_verify(struct thread_data *, struct io_u **); |
e29d1b70 | 520 | |
2f9ade3c JA |
521 | /* |
522 | * Memory helpers | |
523 | */ | |
524 | extern int fio_pin_memory(void); | |
525 | extern void fio_unpin_memory(void); | |
526 | extern int allocate_io_mem(struct thread_data *); | |
527 | extern void free_io_mem(struct thread_data *); | |
528 | ||
10ba535a JA |
529 | /* |
530 | * io unit handling | |
531 | */ | |
532 | #define queue_full(td) list_empty(&(td)->io_u_freelist) | |
533 | extern struct io_u *__get_io_u(struct thread_data *); | |
534 | extern struct io_u *get_io_u(struct thread_data *, struct fio_file *); | |
535 | extern void put_io_u(struct thread_data *, struct io_u *); | |
536 | extern void ios_completed(struct thread_data *, struct io_completion_data *); | |
537 | extern void io_completed(struct thread_data *, struct io_u *, struct io_completion_data *); | |
538 | ||
539 | /* | |
540 | * io engine entry points | |
541 | */ | |
8c16d840 | 542 | extern int td_io_init(struct thread_data *); |
10ba535a JA |
543 | extern int td_io_prep(struct thread_data *, struct io_u *); |
544 | extern int td_io_queue(struct thread_data *, struct io_u *); | |
545 | extern int td_io_sync(struct thread_data *, struct fio_file *); | |
546 | extern int td_io_getevents(struct thread_data *, int, int, struct timespec *); | |
547 | ||
bbfd6b00 JA |
548 | /* |
549 | * This is a pretty crappy semaphore implementation, but with the use that fio | |
550 | * has (just signalling start/go conditions), it doesn't have to be better. | |
551 | * Naturally this would not work for any type of contended semaphore or | |
552 | * for real locking. | |
553 | */ | |
1056eaad | 554 | static inline void fio_sem_init(volatile int *sem, int val) |
bbfd6b00 JA |
555 | { |
556 | *sem = val; | |
557 | } | |
558 | ||
1056eaad | 559 | static inline void fio_sem_down(volatile int *sem) |
bbfd6b00 JA |
560 | { |
561 | while (*sem == 0) | |
562 | usleep(10000); | |
563 | ||
564 | (*sem)--; | |
565 | } | |
566 | ||
1056eaad | 567 | static inline void fio_sem_up(volatile int *sem) |
bbfd6b00 JA |
568 | { |
569 | (*sem)++; | |
570 | } | |
571 | ||
3b70d7e5 JA |
572 | /* |
573 | * If logging output to a file, stderr should go to both stderr and f_err | |
574 | */ | |
575 | #define log_err(args...) do { \ | |
576 | fprintf(f_err, ##args); \ | |
577 | if (f_err != stderr) \ | |
578 | fprintf(stderr, ##args); \ | |
579 | } while (0) | |
580 | ||
2866c82d | 581 | struct ioengine_ops { |
5f350952 | 582 | struct list_head list; |
2866c82d JA |
583 | char name[16]; |
584 | int version; | |
585 | int flags; | |
ea2877a4 | 586 | int (*setup)(struct thread_data *); |
2866c82d JA |
587 | int (*init)(struct thread_data *); |
588 | int (*prep)(struct thread_data *, struct io_u *); | |
589 | int (*queue)(struct thread_data *, struct io_u *); | |
590 | int (*getevents)(struct thread_data *, int, int, struct timespec *); | |
591 | struct io_u *(*event)(struct thread_data *, int); | |
592 | int (*cancel)(struct thread_data *, struct io_u *); | |
593 | void (*cleanup)(struct thread_data *); | |
2866c82d JA |
594 | void *data; |
595 | void *dlhandle; | |
596 | }; | |
597 | ||
87dc1ab1 | 598 | #define FIO_IOOPS_VERSION 3 |
2866c82d | 599 | |
b4692828 | 600 | extern struct ioengine_ops *load_ioengine(struct thread_data *, const char *); |
5f350952 JA |
601 | extern int register_ioengine(struct ioengine_ops *); |
602 | extern void unregister_ioengine(struct ioengine_ops *); | |
2866c82d JA |
603 | extern void close_ioengine(struct thread_data *); |
604 | ||
605 | /* | |
606 | * Mark unused variables passed to ops functions as unused, to silence gcc | |
607 | */ | |
608 | #define fio_unused __attribute((__unused__)) | |
5f350952 JA |
609 | #define fio_init __attribute__((constructor)) |
610 | #define fio_exit __attribute__((destructor)) | |
2866c82d | 611 | |
34572e28 JA |
612 | #define for_each_td(td, i) \ |
613 | for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++) | |
53cdc686 | 614 | #define for_each_file(td, f, i) \ |
34572e28 | 615 | for ((i) = 0, (f) = &(td)->files[0]; (i) < (int) (td)->nr_files; (i)++, (f)++) |
53cdc686 | 616 | |
ebac4655 | 617 | #endif |