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