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