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 | ||
1c9e06ee JA |
27 | /* |
28 | * Use for maintaining statistics | |
29 | */ | |
ebac4655 | 30 | struct io_stat { |
ebac4655 JA |
31 | unsigned long max_val; |
32 | unsigned long min_val; | |
33 | unsigned long samples; | |
68704084 JA |
34 | |
35 | double mean; | |
36 | double S; | |
ebac4655 JA |
37 | }; |
38 | ||
1c9e06ee JA |
39 | /* |
40 | * A single data sample | |
41 | */ | |
ebac4655 JA |
42 | struct io_sample { |
43 | unsigned long time; | |
44 | unsigned long val; | |
1e97cce9 | 45 | enum fio_ddir ddir; |
ebac4655 JA |
46 | }; |
47 | ||
1c9e06ee JA |
48 | /* |
49 | * Dynamically growing data sample log | |
50 | */ | |
ebac4655 JA |
51 | struct io_log { |
52 | unsigned long nr_samples; | |
53 | unsigned long max_samples; | |
54 | struct io_sample *log; | |
55 | }; | |
56 | ||
1c9e06ee JA |
57 | /* |
58 | * When logging io actions, this matches a single sent io_u | |
59 | */ | |
ebac4655 JA |
60 | struct io_piece { |
61 | struct list_head list; | |
53cdc686 | 62 | struct fio_file *file; |
ebac4655 JA |
63 | unsigned long long offset; |
64 | unsigned int len; | |
1e97cce9 | 65 | enum fio_ddir ddir; |
ebac4655 JA |
66 | }; |
67 | ||
68 | /* | |
69 | * The io unit | |
70 | */ | |
71 | struct io_u { | |
72 | union { | |
73 | #ifdef FIO_HAVE_LIBAIO | |
74 | struct iocb iocb; | |
75 | #endif | |
76 | #ifdef FIO_HAVE_POSIXAIO | |
77 | struct aiocb aiocb; | |
78 | #endif | |
79 | #ifdef FIO_HAVE_SGIO | |
80 | struct sg_io_hdr hdr; | |
81 | #endif | |
82 | }; | |
83 | struct timeval start_time; | |
84 | struct timeval issue_time; | |
85 | ||
1c9e06ee JA |
86 | /* |
87 | * Allocated/set buffer and length | |
88 | */ | |
6b9cea23 | 89 | void *buf; |
ebac4655 JA |
90 | unsigned int buflen; |
91 | unsigned long long offset; | |
92 | ||
1c9e06ee JA |
93 | /* |
94 | * IO engine state, may be different from above when we get | |
95 | * partial transfers / residual data counts | |
96 | */ | |
cec6b55d JA |
97 | void *xfer_buf; |
98 | unsigned int xfer_buflen; | |
99 | ||
ebac4655 JA |
100 | unsigned int resid; |
101 | unsigned int error; | |
102 | ||
1e97cce9 | 103 | enum fio_ddir ddir; |
ebac4655 | 104 | |
dfd7bc2c JA |
105 | /* |
106 | * io engine private data | |
107 | */ | |
108 | union { | |
109 | unsigned int index; | |
110 | unsigned int seen; | |
111 | }; | |
112 | ||
53cdc686 JA |
113 | struct fio_file *file; |
114 | ||
ebac4655 JA |
115 | struct list_head list; |
116 | }; | |
117 | ||
118 | #define FIO_HDR_MAGIC 0xf00baaef | |
119 | ||
120 | enum { | |
1c9e06ee JA |
121 | VERIFY_NONE = 0, /* no verification */ |
122 | VERIFY_MD5, /* md5 sum data blocks */ | |
123 | VERIFY_CRC32, /* crc32 sum data blocks */ | |
ebac4655 JA |
124 | }; |
125 | ||
1c9e06ee JA |
126 | /* |
127 | * A header structure associated with each checksummed data block | |
128 | */ | |
ebac4655 JA |
129 | struct verify_header { |
130 | unsigned int fio_magic; | |
131 | unsigned int len; | |
132 | unsigned int verify_type; | |
133 | union { | |
134 | char md5_digest[MD5_HASH_WORDS * 4]; | |
135 | unsigned long crc32; | |
136 | }; | |
137 | }; | |
138 | ||
139 | struct group_run_stats { | |
9104f874 JA |
140 | unsigned long long max_run[2], min_run[2]; |
141 | unsigned long long max_bw[2], min_bw[2]; | |
e9b2a3fa | 142 | unsigned long long io_kb[2]; |
9104f874 | 143 | unsigned long long agg[2]; |
ebac4655 JA |
144 | }; |
145 | ||
e9c047a0 JA |
146 | /* |
147 | * What type of allocation to use for io buffers | |
148 | */ | |
149 | enum fio_memtype { | |
150 | MEM_MALLOC = 0, /* ordinary malloc */ | |
151 | MEM_SHM, /* use shared memory segments */ | |
74b025b0 | 152 | MEM_SHMHUGE, /* use shared memory segments with huge pages */ |
e9c047a0 | 153 | MEM_MMAP, /* use anonynomous mmap */ |
d0bdaf49 | 154 | MEM_MMAPHUGE, /* memory mapped huge file */ |
e9c047a0 JA |
155 | }; |
156 | ||
157 | /* | |
158 | * The type of object we are working on | |
159 | */ | |
160 | enum fio_filetype { | |
1c9e06ee JA |
161 | FIO_TYPE_FILE = 1, /* plain file */ |
162 | FIO_TYPE_BD, /* block device */ | |
163 | FIO_TYPE_CHAR, /* character device */ | |
e9c047a0 JA |
164 | }; |
165 | ||
2866c82d | 166 | enum fio_ioengine_flags { |
1c9e06ee JA |
167 | FIO_SYNCIO = 1 << 0, /* io engine has synchronous ->queue */ |
168 | FIO_CPUIO = 1 << 1, /* cpu burner, doesn't do real io */ | |
169 | FIO_MMAPIO = 1 << 2, /* uses memory mapped io */ | |
170 | FIO_RAWIO = 1 << 3, /* some sort of direct/raw io */ | |
171 | FIO_NETIO = 1 << 4, /* networked io */ | |
172 | FIO_NULLIO = 1 << 5, /* no real data transfer (cpu/null) */ | |
e9c047a0 JA |
173 | }; |
174 | ||
1c9e06ee JA |
175 | /* |
176 | * Each thread_data structure has a number of files associated with it, | |
177 | * this structure holds state information for a single file. | |
178 | */ | |
53cdc686 JA |
179 | struct fio_file { |
180 | /* | |
181 | * A file may not be a file descriptor, let the io engine decide | |
182 | */ | |
183 | union { | |
184 | unsigned long file_data; | |
185 | int fd; | |
186 | }; | |
187 | char *file_name; | |
188 | void *mmap; | |
189 | unsigned long long file_size; | |
190 | unsigned long long real_file_size; | |
191 | unsigned long long file_offset; | |
192 | unsigned long long last_pos; | |
02bcaa8c | 193 | unsigned long long last_completed_pos; |
53cdc686 | 194 | |
1c9e06ee JA |
195 | /* |
196 | * block map for random io | |
197 | */ | |
53cdc686 JA |
198 | unsigned long *file_map; |
199 | unsigned int num_maps; | |
1c9e06ee | 200 | unsigned int last_free_lookup; |
9b031dc8 JA |
201 | |
202 | unsigned int unlink; | |
53cdc686 JA |
203 | }; |
204 | ||
71619dc2 JA |
205 | /* |
206 | * How many depth levels to log | |
207 | */ | |
208 | #define FIO_IO_U_MAP_NR 8 | |
209 | ||
e9c047a0 JA |
210 | /* |
211 | * This describes a single thread/process executing a fio job. | |
212 | */ | |
ebac4655 | 213 | struct thread_data { |
61697c37 | 214 | char *description; |
b4692828 | 215 | char *name; |
ef899b63 | 216 | char *directory; |
13f8e2d2 | 217 | char *filename; |
ebac4655 JA |
218 | char verror[80]; |
219 | pthread_t thread; | |
220 | int thread_number; | |
221 | int groupid; | |
e9c047a0 | 222 | enum fio_filetype filetype; |
53cdc686 JA |
223 | struct fio_file *files; |
224 | unsigned int nr_files; | |
13f8e2d2 | 225 | unsigned int nr_uniq_files; |
53cdc686 | 226 | unsigned int next_file; |
ebac4655 | 227 | int error; |
ebac4655 JA |
228 | pid_t pid; |
229 | char *orig_buffer; | |
230 | size_t orig_buffer_size; | |
231 | volatile int terminate; | |
232 | volatile int runstate; | |
e9c047a0 | 233 | enum fio_ddir ddir; |
3d60d1ed | 234 | unsigned int iomix; |
ebac4655 | 235 | unsigned int ioprio; |
87dc1ab1 | 236 | unsigned int last_was_sync; |
e9c047a0 | 237 | |
9158d2f7 JA |
238 | unsigned int sequential; |
239 | unsigned int odirect; | |
240 | unsigned int invalidate_cache; | |
241 | unsigned int create_serialize; | |
242 | unsigned int create_fsync; | |
243 | unsigned int end_fsync; | |
244 | unsigned int sync_io; | |
245 | unsigned int verify; | |
246 | unsigned int use_thread; | |
247 | unsigned int unlink; | |
248 | unsigned int do_disk_util; | |
249 | unsigned int override_sync; | |
250 | unsigned int rand_repeatable; | |
251 | unsigned int write_lat_log; | |
252 | unsigned int write_bw_log; | |
bb8895e0 | 253 | unsigned int norandommap; |
690adba3 | 254 | unsigned int bs_unaligned; |
e9c047a0 | 255 | |
a00735e6 JA |
256 | unsigned int bs[2]; |
257 | unsigned int min_bs[2]; | |
258 | unsigned int max_bs[2]; | |
56bb17f2 | 259 | unsigned int hugepage_size; |
a00735e6 | 260 | unsigned int rw_min_bs; |
ebac4655 | 261 | unsigned int thinktime; |
9c1f7434 | 262 | unsigned int thinktime_blocks; |
ebac4655 JA |
263 | unsigned int fsync_blocks; |
264 | unsigned int start_delay; | |
906c8d75 | 265 | unsigned long timeout; |
ebac4655 | 266 | unsigned int overwrite; |
ebac4655 | 267 | unsigned int bw_avg_time; |
ebac4655 | 268 | unsigned int loops; |
20dc95c4 JA |
269 | unsigned long long zone_size; |
270 | unsigned long long zone_skip; | |
e9c047a0 | 271 | enum fio_memtype mem_type; |
313cb206 JA |
272 | char *mmapfile; |
273 | int mmapfd; | |
ebac4655 JA |
274 | unsigned int stonewall; |
275 | unsigned int numjobs; | |
ebac4655 JA |
276 | unsigned int iodepth; |
277 | os_cpu_mask_t cpumask; | |
aea47d44 | 278 | unsigned int iolog; |
843a7413 | 279 | unsigned int read_iolog; |
a6ccc7be JA |
280 | unsigned int rwmixcycle; |
281 | unsigned int rwmixread; | |
e1f36503 | 282 | unsigned int rwmixwrite; |
b6f4d880 | 283 | unsigned int nice; |
aea47d44 | 284 | |
076efc7c JA |
285 | char *read_iolog_file; |
286 | char *write_iolog_file; | |
843a7413 JA |
287 | void *iolog_buf; |
288 | FILE *iolog_f; | |
ebac4655 | 289 | |
da86774e | 290 | char *sysfs_root; |
da86774e JA |
291 | char *ioscheduler; |
292 | ||
6dfd46b9 JA |
293 | os_random_state_t bsrange_state; |
294 | os_random_state_t verify_state; | |
ebac4655 JA |
295 | |
296 | int shm_id; | |
297 | ||
e9c047a0 JA |
298 | /* |
299 | * IO engine hooks, contains everything needed to submit an io_u | |
300 | * to any of the available IO engines. | |
301 | */ | |
2866c82d | 302 | struct ioengine_ops *io_ops; |
ebac4655 | 303 | |
e9c047a0 JA |
304 | /* |
305 | * Current IO depth and list of free and busy io_u's. | |
306 | */ | |
ebac4655 | 307 | unsigned int cur_depth; |
71619dc2 JA |
308 | unsigned int io_u_map[FIO_IO_U_MAP_NR]; |
309 | unsigned long total_io_u; | |
ebac4655 JA |
310 | struct list_head io_u_freelist; |
311 | struct list_head io_u_busylist; | |
312 | ||
e9c047a0 JA |
313 | /* |
314 | * Rate state | |
315 | */ | |
ebac4655 JA |
316 | unsigned int rate; |
317 | unsigned int ratemin; | |
318 | unsigned int ratecycle; | |
319 | unsigned long rate_usec_cycle; | |
320 | long rate_pending_usleep; | |
321 | unsigned long rate_bytes; | |
322 | struct timeval lastrate; | |
323 | ||
324 | unsigned long runtime[2]; /* msec */ | |
325 | unsigned long long io_size; | |
53cdc686 JA |
326 | unsigned long long total_file_size; |
327 | unsigned long long start_offset; | |
ebac4655 JA |
328 | unsigned long long total_io_size; |
329 | ||
9104f874 JA |
330 | unsigned long long io_blocks[2]; |
331 | unsigned long long io_bytes[2]; | |
332 | unsigned long long zone_bytes; | |
333 | unsigned long long this_io_bytes[2]; | |
bbfd6b00 | 334 | volatile int mutex; |
ebac4655 | 335 | |
e9c047a0 JA |
336 | /* |
337 | * State for random io, a bitmap of blocks done vs not done | |
338 | */ | |
6dfd46b9 | 339 | os_random_state_t random_state; |
ebac4655 | 340 | |
b990b5c0 JA |
341 | /* |
342 | * CPU "io" cycle burner | |
343 | */ | |
344 | unsigned int cpuload; | |
345 | unsigned int cpucycle; | |
346 | ||
ebac4655 JA |
347 | /* |
348 | * bandwidth and latency stats | |
349 | */ | |
350 | struct io_stat clat_stat[2]; /* completion latency */ | |
351 | struct io_stat slat_stat[2]; /* submission latency */ | |
352 | struct io_stat bw_stat[2]; /* bandwidth stats */ | |
353 | ||
9104f874 | 354 | unsigned long long stat_io_bytes[2]; |
ebac4655 JA |
355 | struct timeval stat_sample_time[2]; |
356 | ||
357 | struct io_log *slat_log; | |
358 | struct io_log *clat_log; | |
359 | struct io_log *bw_log; | |
360 | ||
361 | struct timeval start; /* start of this loop */ | |
362 | struct timeval epoch; /* time job was started */ | |
69008999 | 363 | struct timeval end_time;/* time job ended */ |
ebac4655 | 364 | |
e9c047a0 JA |
365 | /* |
366 | * fio system usage accounting | |
367 | */ | |
ebac4655 JA |
368 | struct rusage ru_start; |
369 | struct rusage ru_end; | |
370 | unsigned long usr_time; | |
371 | unsigned long sys_time; | |
372 | unsigned long ctx; | |
373 | ||
e9c047a0 JA |
374 | /* |
375 | * read/write mixed workload state | |
376 | */ | |
6dfd46b9 | 377 | os_random_state_t rwmix_state; |
a6ccc7be | 378 | struct timeval rwmix_switch; |
e9c047a0 | 379 | enum fio_ddir rwmix_ddir; |
a6ccc7be | 380 | |
4e0ba8af JA |
381 | /* |
382 | * Pre-run and post-run shell | |
383 | */ | |
384 | char *exec_prerun; | |
385 | char *exec_postrun; | |
386 | ||
e9c047a0 JA |
387 | /* |
388 | * IO historic logs | |
389 | */ | |
ebac4655 | 390 | struct list_head io_hist_list; |
aea47d44 | 391 | struct list_head io_log_list; |
ebac4655 JA |
392 | }; |
393 | ||
b990b5c0 | 394 | #define __td_verror(td, err, msg) \ |
ebac4655 JA |
395 | do { \ |
396 | int e = (err); \ | |
397 | (td)->error = e; \ | |
b990b5c0 | 398 | snprintf(td->verror, sizeof(td->verror) - 1, "file:%s:%d, error=%s", __FILE__, __LINE__, (msg)); \ |
ebac4655 JA |
399 | } while (0) |
400 | ||
b990b5c0 JA |
401 | |
402 | #define td_verror(td, err) __td_verror((td), (err), strerror((err))) | |
403 | #define td_vmsg(td, err, msg) __td_verror((td), (err), (msg)) | |
404 | ||
ebac4655 JA |
405 | extern int exitall_on_terminate; |
406 | extern int thread_number; | |
407 | extern int shm_id; | |
408 | extern int groupid; | |
c6ae0a5b | 409 | extern int terse_output; |
eb8bbf48 JA |
410 | extern FILE *f_out; |
411 | extern FILE *f_err; | |
53cdc686 | 412 | extern int temp_stall_ts; |
1e97cce9 | 413 | extern unsigned long long mlock_size; |
ebac4655 JA |
414 | |
415 | extern struct thread_data *threads; | |
416 | ||
ebac4655 JA |
417 | #define td_read(td) ((td)->ddir == DDIR_READ) |
418 | #define td_write(td) ((td)->ddir == DDIR_WRITE) | |
3d60d1ed | 419 | #define td_rw(td) ((td)->iomix != 0) |
ebac4655 JA |
420 | |
421 | #define BLOCKS_PER_MAP (8 * sizeof(long)) | |
a00735e6 | 422 | #define TO_MAP_BLOCK(td, f, b) ((b) - ((f)->file_offset / (td)->rw_min_bs)) |
53cdc686 JA |
423 | #define RAND_MAP_IDX(td, f, b) (TO_MAP_BLOCK(td, f, b) / BLOCKS_PER_MAP) |
424 | #define RAND_MAP_BIT(td, f, b) (TO_MAP_BLOCK(td, f, b) & (BLOCKS_PER_MAP - 1)) | |
ebac4655 JA |
425 | |
426 | #define MAX_JOBS (1024) | |
427 | ||
87dc1ab1 JA |
428 | static inline int should_fsync(struct thread_data *td) |
429 | { | |
430 | if (td->last_was_sync) | |
431 | return 0; | |
432 | if (td->odirect) | |
433 | return 0; | |
434 | if (td_write(td) || td_rw(td) || td->override_sync) | |
435 | return 1; | |
436 | ||
437 | return 0; | |
438 | } | |
439 | ||
1c9e06ee JA |
440 | /* |
441 | * Disk utils as read in /sys/block/<dev>/stat | |
442 | */ | |
ebac4655 JA |
443 | struct disk_util_stat { |
444 | unsigned ios[2]; | |
445 | unsigned merges[2]; | |
446 | unsigned long long sectors[2]; | |
447 | unsigned ticks[2]; | |
448 | unsigned io_ticks; | |
449 | unsigned time_in_queue; | |
450 | }; | |
451 | ||
1c9e06ee JA |
452 | /* |
453 | * Per-device disk util management | |
454 | */ | |
ebac4655 JA |
455 | struct disk_util { |
456 | struct list_head list; | |
457 | ||
458 | char *name; | |
459 | char path[256]; | |
460 | dev_t dev; | |
461 | ||
462 | struct disk_util_stat dus; | |
463 | struct disk_util_stat last_dus; | |
464 | ||
465 | unsigned long msec; | |
466 | struct timeval time; | |
467 | }; | |
468 | ||
1c9e06ee JA |
469 | /* |
470 | * Used for passing io_u completion data | |
471 | */ | |
ebac4655 JA |
472 | struct io_completion_data { |
473 | int nr; /* input */ | |
474 | ||
475 | int error; /* output */ | |
476 | unsigned long bytes_done[2]; /* output */ | |
02bcaa8c | 477 | struct timeval time; /* output */ |
ebac4655 JA |
478 | }; |
479 | ||
480 | #define DISK_UTIL_MSEC (250) | |
481 | ||
6a0106a0 JA |
482 | #ifndef min |
483 | #define min(a, b) ((a) < (b) ? (a) : (b)) | |
484 | #endif | |
a00735e6 JA |
485 | #ifndef max |
486 | #define max(a, b) ((a) > (b) ? (a) : (b)) | |
487 | #endif | |
6a0106a0 | 488 | |
6796209a JA |
489 | /* |
490 | * Log exports | |
491 | */ | |
492 | extern int read_iolog_get(struct thread_data *, struct io_u *); | |
493 | extern void write_iolog_put(struct thread_data *, struct io_u *); | |
494 | extern int init_iolog(struct thread_data *td); | |
495 | extern void log_io_piece(struct thread_data *, struct io_u *); | |
496 | extern void prune_io_piece_log(struct thread_data *); | |
497 | extern void write_iolog_close(struct thread_data *); | |
498 | ||
499 | /* | |
500 | * Logging | |
501 | */ | |
1e97cce9 JA |
502 | extern void add_clat_sample(struct thread_data *, enum fio_ddir, unsigned long); |
503 | extern void add_slat_sample(struct thread_data *, enum fio_ddir, unsigned long); | |
504 | extern void add_bw_sample(struct thread_data *, enum fio_ddir, struct timeval *); | |
6796209a JA |
505 | extern void show_run_stats(void); |
506 | extern void init_disk_util(struct thread_data *); | |
507 | extern void update_rusage_stat(struct thread_data *); | |
508 | extern void update_io_ticks(void); | |
509 | extern void disk_util_timer_arm(void); | |
8914a9d8 JA |
510 | extern void setup_log(struct io_log **); |
511 | extern void finish_log(struct thread_data *, struct io_log *, const char *); | |
bb3884d8 | 512 | extern void __finish_log(struct io_log *, const char *); |
8914a9d8 | 513 | extern int setup_rate(struct thread_data *); |
bb3884d8 JA |
514 | extern struct io_log *agg_io_log[2]; |
515 | extern int write_bw_log; | |
516 | extern void add_agg_sample(unsigned long, enum fio_ddir); | |
6796209a JA |
517 | |
518 | /* | |
519 | * Time functions | |
520 | */ | |
521 | extern unsigned long utime_since(struct timeval *, struct timeval *); | |
69008999 | 522 | extern unsigned long utime_since_now(struct timeval *); |
6796209a JA |
523 | extern unsigned long mtime_since(struct timeval *, struct timeval *); |
524 | extern unsigned long mtime_since_now(struct timeval *); | |
525 | extern unsigned long time_since_now(struct timeval *); | |
263e529f | 526 | extern unsigned long mtime_since_genesis(void); |
b990b5c0 | 527 | extern void __usec_sleep(unsigned int); |
6796209a | 528 | extern void usec_sleep(struct thread_data *, unsigned long); |
a00735e6 | 529 | extern void rate_throttle(struct thread_data *, unsigned long, unsigned int, int); |
6043c579 | 530 | extern void fill_start_time(struct timeval *); |
02bcaa8c | 531 | extern void fio_gettime(struct timeval *, void *); |
6796209a | 532 | |
8914a9d8 JA |
533 | /* |
534 | * Init functions | |
535 | */ | |
536 | extern int parse_options(int, char **); | |
537 | extern int init_random_state(struct thread_data *); | |
538 | ||
53cdc686 JA |
539 | /* |
540 | * File setup/shutdown | |
541 | */ | |
542 | extern void close_files(struct thread_data *); | |
543 | extern int setup_files(struct thread_data *); | |
21972cde | 544 | extern int open_files(struct thread_data *); |
e5b401d4 | 545 | extern int file_invalidate_cache(struct thread_data *, struct fio_file *); |
53cdc686 | 546 | |
263e529f JA |
547 | /* |
548 | * ETA/status stuff | |
549 | */ | |
550 | extern void print_thread_status(void); | |
551 | extern void print_status_init(int); | |
552 | ||
553 | /* | |
554 | * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it | |
555 | * will never back again. It may cycle between running/verififying/fsyncing. | |
556 | * Once the thread reaches TD_EXITED, it is just waiting for the core to | |
557 | * reap it. | |
558 | */ | |
559 | enum { | |
560 | TD_NOT_CREATED = 0, | |
561 | TD_CREATED, | |
562 | TD_INITIALIZED, | |
563 | TD_RUNNING, | |
564 | TD_VERIFYING, | |
565 | TD_FSYNCING, | |
566 | TD_EXITED, | |
567 | TD_REAPED, | |
568 | }; | |
569 | ||
e29d1b70 JA |
570 | /* |
571 | * Verify helpers | |
572 | */ | |
573 | extern void populate_verify_io_u(struct thread_data *, struct io_u *); | |
574 | extern int get_next_verify(struct thread_data *td, struct io_u *); | |
a9619d44 | 575 | extern int do_io_u_verify(struct thread_data *, struct io_u **); |
e29d1b70 | 576 | |
2f9ade3c JA |
577 | /* |
578 | * Memory helpers | |
579 | */ | |
580 | extern int fio_pin_memory(void); | |
581 | extern void fio_unpin_memory(void); | |
582 | extern int allocate_io_mem(struct thread_data *); | |
583 | extern void free_io_mem(struct thread_data *); | |
584 | ||
10ba535a JA |
585 | /* |
586 | * io unit handling | |
587 | */ | |
588 | #define queue_full(td) list_empty(&(td)->io_u_freelist) | |
589 | extern struct io_u *__get_io_u(struct thread_data *); | |
590 | extern struct io_u *get_io_u(struct thread_data *, struct fio_file *); | |
591 | extern void put_io_u(struct thread_data *, struct io_u *); | |
592 | extern void ios_completed(struct thread_data *, struct io_completion_data *); | |
593 | extern void io_completed(struct thread_data *, struct io_u *, struct io_completion_data *); | |
594 | ||
595 | /* | |
596 | * io engine entry points | |
597 | */ | |
8c16d840 | 598 | extern int td_io_init(struct thread_data *); |
10ba535a JA |
599 | extern int td_io_prep(struct thread_data *, struct io_u *); |
600 | extern int td_io_queue(struct thread_data *, struct io_u *); | |
601 | extern int td_io_sync(struct thread_data *, struct fio_file *); | |
602 | extern int td_io_getevents(struct thread_data *, int, int, struct timespec *); | |
603 | ||
bbfd6b00 JA |
604 | /* |
605 | * This is a pretty crappy semaphore implementation, but with the use that fio | |
606 | * has (just signalling start/go conditions), it doesn't have to be better. | |
607 | * Naturally this would not work for any type of contended semaphore or | |
608 | * for real locking. | |
609 | */ | |
1056eaad | 610 | static inline void fio_sem_init(volatile int *sem, int val) |
bbfd6b00 JA |
611 | { |
612 | *sem = val; | |
613 | } | |
614 | ||
1056eaad | 615 | static inline void fio_sem_down(volatile int *sem) |
bbfd6b00 JA |
616 | { |
617 | while (*sem == 0) | |
618 | usleep(10000); | |
619 | ||
620 | (*sem)--; | |
621 | } | |
622 | ||
1056eaad | 623 | static inline void fio_sem_up(volatile int *sem) |
bbfd6b00 JA |
624 | { |
625 | (*sem)++; | |
626 | } | |
627 | ||
3b70d7e5 JA |
628 | /* |
629 | * If logging output to a file, stderr should go to both stderr and f_err | |
630 | */ | |
631 | #define log_err(args...) do { \ | |
632 | fprintf(f_err, ##args); \ | |
633 | if (f_err != stderr) \ | |
634 | fprintf(stderr, ##args); \ | |
635 | } while (0) | |
636 | ||
2866c82d | 637 | struct ioengine_ops { |
5f350952 | 638 | struct list_head list; |
2866c82d JA |
639 | char name[16]; |
640 | int version; | |
641 | int flags; | |
ea2877a4 | 642 | int (*setup)(struct thread_data *); |
2866c82d JA |
643 | int (*init)(struct thread_data *); |
644 | int (*prep)(struct thread_data *, struct io_u *); | |
645 | int (*queue)(struct thread_data *, struct io_u *); | |
646 | int (*getevents)(struct thread_data *, int, int, struct timespec *); | |
647 | struct io_u *(*event)(struct thread_data *, int); | |
648 | int (*cancel)(struct thread_data *, struct io_u *); | |
649 | void (*cleanup)(struct thread_data *); | |
2866c82d JA |
650 | void *data; |
651 | void *dlhandle; | |
652 | }; | |
653 | ||
87dc1ab1 | 654 | #define FIO_IOOPS_VERSION 3 |
2866c82d | 655 | |
b4692828 | 656 | extern struct ioengine_ops *load_ioengine(struct thread_data *, const char *); |
5f350952 JA |
657 | extern int register_ioengine(struct ioengine_ops *); |
658 | extern void unregister_ioengine(struct ioengine_ops *); | |
2866c82d JA |
659 | extern void close_ioengine(struct thread_data *); |
660 | ||
661 | /* | |
662 | * Mark unused variables passed to ops functions as unused, to silence gcc | |
663 | */ | |
664 | #define fio_unused __attribute((__unused__)) | |
5f350952 JA |
665 | #define fio_init __attribute__((constructor)) |
666 | #define fio_exit __attribute__((destructor)) | |
2866c82d | 667 | |
34572e28 JA |
668 | #define for_each_td(td, i) \ |
669 | for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++) | |
53cdc686 | 670 | #define for_each_file(td, f, i) \ |
34572e28 | 671 | for ((i) = 0, (f) = &(td)->files[0]; (i) < (int) (td)->nr_files; (i)++, (f)++) |
53cdc686 | 672 | |
ebac4655 | 673 | #endif |