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 | ||
a4f4fdd7 JA |
21 | #include "syslet.h" |
22 | ||
1e97cce9 JA |
23 | enum fio_ddir { |
24 | DDIR_READ = 0, | |
25 | DDIR_WRITE, | |
26 | DDIR_SYNC, | |
27 | }; | |
28 | ||
1c9e06ee JA |
29 | /* |
30 | * Use for maintaining statistics | |
31 | */ | |
ebac4655 | 32 | struct io_stat { |
ebac4655 JA |
33 | unsigned long max_val; |
34 | unsigned long min_val; | |
35 | unsigned long samples; | |
68704084 JA |
36 | |
37 | double mean; | |
38 | double S; | |
ebac4655 JA |
39 | }; |
40 | ||
1c9e06ee JA |
41 | /* |
42 | * A single data sample | |
43 | */ | |
ebac4655 JA |
44 | struct io_sample { |
45 | unsigned long time; | |
46 | unsigned long val; | |
1e97cce9 | 47 | enum fio_ddir ddir; |
ebac4655 JA |
48 | }; |
49 | ||
1c9e06ee JA |
50 | /* |
51 | * Dynamically growing data sample log | |
52 | */ | |
ebac4655 JA |
53 | struct io_log { |
54 | unsigned long nr_samples; | |
55 | unsigned long max_samples; | |
56 | struct io_sample *log; | |
57 | }; | |
58 | ||
1c9e06ee JA |
59 | /* |
60 | * When logging io actions, this matches a single sent io_u | |
61 | */ | |
ebac4655 JA |
62 | struct io_piece { |
63 | struct list_head list; | |
53cdc686 | 64 | struct fio_file *file; |
ebac4655 | 65 | unsigned long long offset; |
a4f4fdd7 | 66 | unsigned long len; |
1e97cce9 | 67 | enum fio_ddir ddir; |
ebac4655 JA |
68 | }; |
69 | ||
a4f4fdd7 JA |
70 | #ifdef FIO_HAVE_SYSLET |
71 | struct syslet_req { | |
72 | struct syslet_uatom atom; | |
73 | unsigned long cmd; | |
74 | long ret; | |
75 | }; | |
76 | #endif | |
77 | ||
ebac4655 JA |
78 | /* |
79 | * The io unit | |
80 | */ | |
81 | struct io_u { | |
82 | union { | |
83 | #ifdef FIO_HAVE_LIBAIO | |
84 | struct iocb iocb; | |
85 | #endif | |
86 | #ifdef FIO_HAVE_POSIXAIO | |
87 | struct aiocb aiocb; | |
88 | #endif | |
89 | #ifdef FIO_HAVE_SGIO | |
90 | struct sg_io_hdr hdr; | |
a4f4fdd7 JA |
91 | #endif |
92 | #ifdef FIO_HAVE_SYSLET | |
93 | struct syslet_req rw_atom; | |
94 | struct syslet_req seek_atom; | |
ebac4655 JA |
95 | #endif |
96 | }; | |
97 | struct timeval start_time; | |
98 | struct timeval issue_time; | |
99 | ||
1c9e06ee JA |
100 | /* |
101 | * Allocated/set buffer and length | |
102 | */ | |
6b9cea23 | 103 | void *buf; |
a4f4fdd7 | 104 | unsigned long buflen; |
ebac4655 JA |
105 | unsigned long long offset; |
106 | ||
1c9e06ee JA |
107 | /* |
108 | * IO engine state, may be different from above when we get | |
109 | * partial transfers / residual data counts | |
110 | */ | |
cec6b55d | 111 | void *xfer_buf; |
a4f4fdd7 | 112 | unsigned long xfer_buflen; |
cec6b55d | 113 | |
ebac4655 JA |
114 | unsigned int resid; |
115 | unsigned int error; | |
116 | ||
1e97cce9 | 117 | enum fio_ddir ddir; |
ebac4655 | 118 | |
dfd7bc2c JA |
119 | /* |
120 | * io engine private data | |
121 | */ | |
122 | union { | |
123 | unsigned int index; | |
124 | unsigned int seen; | |
125 | }; | |
126 | ||
53cdc686 JA |
127 | struct fio_file *file; |
128 | ||
ebac4655 JA |
129 | struct list_head list; |
130 | }; | |
131 | ||
132 | #define FIO_HDR_MAGIC 0xf00baaef | |
133 | ||
134 | enum { | |
1c9e06ee JA |
135 | VERIFY_NONE = 0, /* no verification */ |
136 | VERIFY_MD5, /* md5 sum data blocks */ | |
137 | VERIFY_CRC32, /* crc32 sum data blocks */ | |
ebac4655 JA |
138 | }; |
139 | ||
1c9e06ee JA |
140 | /* |
141 | * A header structure associated with each checksummed data block | |
142 | */ | |
ebac4655 JA |
143 | struct verify_header { |
144 | unsigned int fio_magic; | |
145 | unsigned int len; | |
146 | unsigned int verify_type; | |
147 | union { | |
148 | char md5_digest[MD5_HASH_WORDS * 4]; | |
149 | unsigned long crc32; | |
150 | }; | |
151 | }; | |
152 | ||
153 | struct group_run_stats { | |
9104f874 JA |
154 | unsigned long long max_run[2], min_run[2]; |
155 | unsigned long long max_bw[2], min_bw[2]; | |
e9b2a3fa | 156 | unsigned long long io_kb[2]; |
9104f874 | 157 | unsigned long long agg[2]; |
ebac4655 JA |
158 | }; |
159 | ||
e9c047a0 JA |
160 | /* |
161 | * What type of allocation to use for io buffers | |
162 | */ | |
163 | enum fio_memtype { | |
164 | MEM_MALLOC = 0, /* ordinary malloc */ | |
165 | MEM_SHM, /* use shared memory segments */ | |
74b025b0 | 166 | MEM_SHMHUGE, /* use shared memory segments with huge pages */ |
e9c047a0 | 167 | MEM_MMAP, /* use anonynomous mmap */ |
d0bdaf49 | 168 | MEM_MMAPHUGE, /* memory mapped huge file */ |
e9c047a0 JA |
169 | }; |
170 | ||
171 | /* | |
172 | * The type of object we are working on | |
173 | */ | |
174 | enum fio_filetype { | |
1c9e06ee JA |
175 | FIO_TYPE_FILE = 1, /* plain file */ |
176 | FIO_TYPE_BD, /* block device */ | |
177 | FIO_TYPE_CHAR, /* character device */ | |
e9c047a0 JA |
178 | }; |
179 | ||
2866c82d | 180 | enum fio_ioengine_flags { |
1c9e06ee JA |
181 | FIO_SYNCIO = 1 << 0, /* io engine has synchronous ->queue */ |
182 | FIO_CPUIO = 1 << 1, /* cpu burner, doesn't do real io */ | |
183 | FIO_MMAPIO = 1 << 2, /* uses memory mapped io */ | |
184 | FIO_RAWIO = 1 << 3, /* some sort of direct/raw io */ | |
185 | FIO_NETIO = 1 << 4, /* networked io */ | |
186 | FIO_NULLIO = 1 << 5, /* no real data transfer (cpu/null) */ | |
e9c047a0 JA |
187 | }; |
188 | ||
1c9e06ee JA |
189 | /* |
190 | * Each thread_data structure has a number of files associated with it, | |
191 | * this structure holds state information for a single file. | |
192 | */ | |
53cdc686 JA |
193 | struct fio_file { |
194 | /* | |
195 | * A file may not be a file descriptor, let the io engine decide | |
196 | */ | |
197 | union { | |
198 | unsigned long file_data; | |
a4f4fdd7 | 199 | long fd; |
53cdc686 JA |
200 | }; |
201 | char *file_name; | |
202 | void *mmap; | |
203 | unsigned long long file_size; | |
204 | unsigned long long real_file_size; | |
205 | unsigned long long file_offset; | |
206 | unsigned long long last_pos; | |
02bcaa8c | 207 | unsigned long long last_completed_pos; |
53cdc686 | 208 | |
1c9e06ee JA |
209 | /* |
210 | * block map for random io | |
211 | */ | |
53cdc686 JA |
212 | unsigned long *file_map; |
213 | unsigned int num_maps; | |
1c9e06ee | 214 | unsigned int last_free_lookup; |
9b031dc8 JA |
215 | |
216 | unsigned int unlink; | |
53cdc686 JA |
217 | }; |
218 | ||
71619dc2 JA |
219 | /* |
220 | * How many depth levels to log | |
221 | */ | |
222 | #define FIO_IO_U_MAP_NR 8 | |
223 | ||
e9c047a0 JA |
224 | /* |
225 | * This describes a single thread/process executing a fio job. | |
226 | */ | |
ebac4655 | 227 | struct thread_data { |
61697c37 | 228 | char *description; |
b4692828 | 229 | char *name; |
ef899b63 | 230 | char *directory; |
13f8e2d2 | 231 | char *filename; |
ebac4655 JA |
232 | char verror[80]; |
233 | pthread_t thread; | |
234 | int thread_number; | |
235 | int groupid; | |
e9c047a0 | 236 | enum fio_filetype filetype; |
53cdc686 JA |
237 | struct fio_file *files; |
238 | unsigned int nr_files; | |
13f8e2d2 | 239 | unsigned int nr_uniq_files; |
53cdc686 | 240 | unsigned int next_file; |
ebac4655 | 241 | int error; |
ebac4655 JA |
242 | pid_t pid; |
243 | char *orig_buffer; | |
244 | size_t orig_buffer_size; | |
245 | volatile int terminate; | |
246 | volatile int runstate; | |
e9c047a0 | 247 | enum fio_ddir ddir; |
3d60d1ed | 248 | unsigned int iomix; |
ebac4655 | 249 | unsigned int ioprio; |
87dc1ab1 | 250 | unsigned int last_was_sync; |
e9c047a0 | 251 | |
9158d2f7 JA |
252 | unsigned int sequential; |
253 | unsigned int odirect; | |
254 | unsigned int invalidate_cache; | |
255 | unsigned int create_serialize; | |
256 | unsigned int create_fsync; | |
257 | unsigned int end_fsync; | |
258 | unsigned int sync_io; | |
259 | unsigned int verify; | |
260 | unsigned int use_thread; | |
261 | unsigned int unlink; | |
262 | unsigned int do_disk_util; | |
263 | unsigned int override_sync; | |
264 | unsigned int rand_repeatable; | |
265 | unsigned int write_lat_log; | |
266 | unsigned int write_bw_log; | |
bb8895e0 | 267 | unsigned int norandommap; |
690adba3 | 268 | unsigned int bs_unaligned; |
e9c047a0 | 269 | |
a00735e6 JA |
270 | unsigned int bs[2]; |
271 | unsigned int min_bs[2]; | |
272 | unsigned int max_bs[2]; | |
56bb17f2 | 273 | unsigned int hugepage_size; |
a00735e6 | 274 | unsigned int rw_min_bs; |
ebac4655 | 275 | unsigned int thinktime; |
9c1f7434 | 276 | unsigned int thinktime_blocks; |
ebac4655 JA |
277 | unsigned int fsync_blocks; |
278 | unsigned int start_delay; | |
906c8d75 | 279 | unsigned long timeout; |
ebac4655 | 280 | unsigned int overwrite; |
ebac4655 | 281 | unsigned int bw_avg_time; |
ebac4655 | 282 | unsigned int loops; |
20dc95c4 JA |
283 | unsigned long long zone_size; |
284 | unsigned long long zone_skip; | |
e9c047a0 | 285 | enum fio_memtype mem_type; |
313cb206 JA |
286 | char *mmapfile; |
287 | int mmapfd; | |
ebac4655 JA |
288 | unsigned int stonewall; |
289 | unsigned int numjobs; | |
ebac4655 JA |
290 | unsigned int iodepth; |
291 | os_cpu_mask_t cpumask; | |
aea47d44 | 292 | unsigned int iolog; |
843a7413 | 293 | unsigned int read_iolog; |
a6ccc7be JA |
294 | unsigned int rwmixcycle; |
295 | unsigned int rwmixread; | |
e1f36503 | 296 | unsigned int rwmixwrite; |
b6f4d880 | 297 | unsigned int nice; |
aea47d44 | 298 | |
076efc7c JA |
299 | char *read_iolog_file; |
300 | char *write_iolog_file; | |
843a7413 JA |
301 | void *iolog_buf; |
302 | FILE *iolog_f; | |
ebac4655 | 303 | |
da86774e | 304 | char *sysfs_root; |
da86774e JA |
305 | char *ioscheduler; |
306 | ||
6dfd46b9 JA |
307 | os_random_state_t bsrange_state; |
308 | os_random_state_t verify_state; | |
ebac4655 JA |
309 | |
310 | int shm_id; | |
311 | ||
e9c047a0 JA |
312 | /* |
313 | * IO engine hooks, contains everything needed to submit an io_u | |
314 | * to any of the available IO engines. | |
315 | */ | |
2866c82d | 316 | struct ioengine_ops *io_ops; |
ebac4655 | 317 | |
e9c047a0 JA |
318 | /* |
319 | * Current IO depth and list of free and busy io_u's. | |
320 | */ | |
ebac4655 | 321 | unsigned int cur_depth; |
71619dc2 JA |
322 | unsigned int io_u_map[FIO_IO_U_MAP_NR]; |
323 | unsigned long total_io_u; | |
ebac4655 JA |
324 | struct list_head io_u_freelist; |
325 | struct list_head io_u_busylist; | |
326 | ||
e9c047a0 JA |
327 | /* |
328 | * Rate state | |
329 | */ | |
ebac4655 JA |
330 | unsigned int rate; |
331 | unsigned int ratemin; | |
332 | unsigned int ratecycle; | |
333 | unsigned long rate_usec_cycle; | |
334 | long rate_pending_usleep; | |
335 | unsigned long rate_bytes; | |
336 | struct timeval lastrate; | |
337 | ||
338 | unsigned long runtime[2]; /* msec */ | |
339 | unsigned long long io_size; | |
53cdc686 JA |
340 | unsigned long long total_file_size; |
341 | unsigned long long start_offset; | |
ebac4655 JA |
342 | unsigned long long total_io_size; |
343 | ||
9104f874 JA |
344 | unsigned long long io_blocks[2]; |
345 | unsigned long long io_bytes[2]; | |
346 | unsigned long long zone_bytes; | |
347 | unsigned long long this_io_bytes[2]; | |
bbfd6b00 | 348 | volatile int mutex; |
ebac4655 | 349 | |
e9c047a0 JA |
350 | /* |
351 | * State for random io, a bitmap of blocks done vs not done | |
352 | */ | |
6dfd46b9 | 353 | os_random_state_t random_state; |
ebac4655 | 354 | |
b990b5c0 JA |
355 | /* |
356 | * CPU "io" cycle burner | |
357 | */ | |
358 | unsigned int cpuload; | |
359 | unsigned int cpucycle; | |
360 | ||
ebac4655 JA |
361 | /* |
362 | * bandwidth and latency stats | |
363 | */ | |
364 | struct io_stat clat_stat[2]; /* completion latency */ | |
365 | struct io_stat slat_stat[2]; /* submission latency */ | |
366 | struct io_stat bw_stat[2]; /* bandwidth stats */ | |
367 | ||
9104f874 | 368 | unsigned long long stat_io_bytes[2]; |
ebac4655 JA |
369 | struct timeval stat_sample_time[2]; |
370 | ||
371 | struct io_log *slat_log; | |
372 | struct io_log *clat_log; | |
373 | struct io_log *bw_log; | |
374 | ||
375 | struct timeval start; /* start of this loop */ | |
376 | struct timeval epoch; /* time job was started */ | |
69008999 | 377 | struct timeval end_time;/* time job ended */ |
ebac4655 | 378 | |
e9c047a0 JA |
379 | /* |
380 | * fio system usage accounting | |
381 | */ | |
ebac4655 JA |
382 | struct rusage ru_start; |
383 | struct rusage ru_end; | |
384 | unsigned long usr_time; | |
385 | unsigned long sys_time; | |
386 | unsigned long ctx; | |
387 | ||
e9c047a0 JA |
388 | /* |
389 | * read/write mixed workload state | |
390 | */ | |
6dfd46b9 | 391 | os_random_state_t rwmix_state; |
a6ccc7be | 392 | struct timeval rwmix_switch; |
e9c047a0 | 393 | enum fio_ddir rwmix_ddir; |
a6ccc7be | 394 | |
4e0ba8af JA |
395 | /* |
396 | * Pre-run and post-run shell | |
397 | */ | |
398 | char *exec_prerun; | |
399 | char *exec_postrun; | |
400 | ||
e9c047a0 JA |
401 | /* |
402 | * IO historic logs | |
403 | */ | |
ebac4655 | 404 | struct list_head io_hist_list; |
aea47d44 | 405 | struct list_head io_log_list; |
ebac4655 JA |
406 | }; |
407 | ||
b990b5c0 | 408 | #define __td_verror(td, err, msg) \ |
ebac4655 JA |
409 | do { \ |
410 | int e = (err); \ | |
411 | (td)->error = e; \ | |
b990b5c0 | 412 | snprintf(td->verror, sizeof(td->verror) - 1, "file:%s:%d, error=%s", __FILE__, __LINE__, (msg)); \ |
ebac4655 JA |
413 | } while (0) |
414 | ||
b990b5c0 JA |
415 | |
416 | #define td_verror(td, err) __td_verror((td), (err), strerror((err))) | |
417 | #define td_vmsg(td, err, msg) __td_verror((td), (err), (msg)) | |
418 | ||
ebac4655 JA |
419 | extern int exitall_on_terminate; |
420 | extern int thread_number; | |
421 | extern int shm_id; | |
422 | extern int groupid; | |
c6ae0a5b | 423 | extern int terse_output; |
eb8bbf48 JA |
424 | extern FILE *f_out; |
425 | extern FILE *f_err; | |
53cdc686 | 426 | extern int temp_stall_ts; |
1e97cce9 | 427 | extern unsigned long long mlock_size; |
ebac4655 JA |
428 | |
429 | extern struct thread_data *threads; | |
430 | ||
ebac4655 JA |
431 | #define td_read(td) ((td)->ddir == DDIR_READ) |
432 | #define td_write(td) ((td)->ddir == DDIR_WRITE) | |
3d60d1ed | 433 | #define td_rw(td) ((td)->iomix != 0) |
ebac4655 JA |
434 | |
435 | #define BLOCKS_PER_MAP (8 * sizeof(long)) | |
a00735e6 | 436 | #define TO_MAP_BLOCK(td, f, b) ((b) - ((f)->file_offset / (td)->rw_min_bs)) |
53cdc686 JA |
437 | #define RAND_MAP_IDX(td, f, b) (TO_MAP_BLOCK(td, f, b) / BLOCKS_PER_MAP) |
438 | #define RAND_MAP_BIT(td, f, b) (TO_MAP_BLOCK(td, f, b) & (BLOCKS_PER_MAP - 1)) | |
ebac4655 JA |
439 | |
440 | #define MAX_JOBS (1024) | |
441 | ||
87dc1ab1 JA |
442 | static inline int should_fsync(struct thread_data *td) |
443 | { | |
444 | if (td->last_was_sync) | |
445 | return 0; | |
446 | if (td->odirect) | |
447 | return 0; | |
448 | if (td_write(td) || td_rw(td) || td->override_sync) | |
449 | return 1; | |
450 | ||
451 | return 0; | |
452 | } | |
453 | ||
1c9e06ee JA |
454 | /* |
455 | * Disk utils as read in /sys/block/<dev>/stat | |
456 | */ | |
ebac4655 JA |
457 | struct disk_util_stat { |
458 | unsigned ios[2]; | |
459 | unsigned merges[2]; | |
460 | unsigned long long sectors[2]; | |
461 | unsigned ticks[2]; | |
462 | unsigned io_ticks; | |
463 | unsigned time_in_queue; | |
464 | }; | |
465 | ||
1c9e06ee JA |
466 | /* |
467 | * Per-device disk util management | |
468 | */ | |
ebac4655 JA |
469 | struct disk_util { |
470 | struct list_head list; | |
471 | ||
472 | char *name; | |
473 | char path[256]; | |
474 | dev_t dev; | |
475 | ||
476 | struct disk_util_stat dus; | |
477 | struct disk_util_stat last_dus; | |
478 | ||
479 | unsigned long msec; | |
480 | struct timeval time; | |
481 | }; | |
482 | ||
1c9e06ee JA |
483 | /* |
484 | * Used for passing io_u completion data | |
485 | */ | |
ebac4655 JA |
486 | struct io_completion_data { |
487 | int nr; /* input */ | |
488 | ||
489 | int error; /* output */ | |
490 | unsigned long bytes_done[2]; /* output */ | |
02bcaa8c | 491 | struct timeval time; /* output */ |
ebac4655 JA |
492 | }; |
493 | ||
494 | #define DISK_UTIL_MSEC (250) | |
495 | ||
6a0106a0 JA |
496 | #ifndef min |
497 | #define min(a, b) ((a) < (b) ? (a) : (b)) | |
498 | #endif | |
a00735e6 JA |
499 | #ifndef max |
500 | #define max(a, b) ((a) > (b) ? (a) : (b)) | |
501 | #endif | |
6a0106a0 | 502 | |
6796209a JA |
503 | /* |
504 | * Log exports | |
505 | */ | |
506 | extern int read_iolog_get(struct thread_data *, struct io_u *); | |
507 | extern void write_iolog_put(struct thread_data *, struct io_u *); | |
508 | extern int init_iolog(struct thread_data *td); | |
509 | extern void log_io_piece(struct thread_data *, struct io_u *); | |
510 | extern void prune_io_piece_log(struct thread_data *); | |
511 | extern void write_iolog_close(struct thread_data *); | |
512 | ||
513 | /* | |
514 | * Logging | |
515 | */ | |
1e97cce9 JA |
516 | extern void add_clat_sample(struct thread_data *, enum fio_ddir, unsigned long); |
517 | extern void add_slat_sample(struct thread_data *, enum fio_ddir, unsigned long); | |
518 | extern void add_bw_sample(struct thread_data *, enum fio_ddir, struct timeval *); | |
6796209a JA |
519 | extern void show_run_stats(void); |
520 | extern void init_disk_util(struct thread_data *); | |
521 | extern void update_rusage_stat(struct thread_data *); | |
522 | extern void update_io_ticks(void); | |
523 | extern void disk_util_timer_arm(void); | |
8914a9d8 JA |
524 | extern void setup_log(struct io_log **); |
525 | extern void finish_log(struct thread_data *, struct io_log *, const char *); | |
bb3884d8 | 526 | extern void __finish_log(struct io_log *, const char *); |
8914a9d8 | 527 | extern int setup_rate(struct thread_data *); |
bb3884d8 JA |
528 | extern struct io_log *agg_io_log[2]; |
529 | extern int write_bw_log; | |
530 | extern void add_agg_sample(unsigned long, enum fio_ddir); | |
6796209a JA |
531 | |
532 | /* | |
533 | * Time functions | |
534 | */ | |
535 | extern unsigned long utime_since(struct timeval *, struct timeval *); | |
69008999 | 536 | extern unsigned long utime_since_now(struct timeval *); |
6796209a JA |
537 | extern unsigned long mtime_since(struct timeval *, struct timeval *); |
538 | extern unsigned long mtime_since_now(struct timeval *); | |
539 | extern unsigned long time_since_now(struct timeval *); | |
263e529f | 540 | extern unsigned long mtime_since_genesis(void); |
b990b5c0 | 541 | extern void __usec_sleep(unsigned int); |
6796209a | 542 | extern void usec_sleep(struct thread_data *, unsigned long); |
a00735e6 | 543 | extern void rate_throttle(struct thread_data *, unsigned long, unsigned int, int); |
6043c579 | 544 | extern void fill_start_time(struct timeval *); |
02bcaa8c | 545 | extern void fio_gettime(struct timeval *, void *); |
6796209a | 546 | |
8914a9d8 JA |
547 | /* |
548 | * Init functions | |
549 | */ | |
550 | extern int parse_options(int, char **); | |
551 | extern int init_random_state(struct thread_data *); | |
552 | ||
53cdc686 JA |
553 | /* |
554 | * File setup/shutdown | |
555 | */ | |
556 | extern void close_files(struct thread_data *); | |
557 | extern int setup_files(struct thread_data *); | |
21972cde | 558 | extern int open_files(struct thread_data *); |
e5b401d4 | 559 | extern int file_invalidate_cache(struct thread_data *, struct fio_file *); |
53cdc686 | 560 | |
263e529f JA |
561 | /* |
562 | * ETA/status stuff | |
563 | */ | |
564 | extern void print_thread_status(void); | |
565 | extern void print_status_init(int); | |
566 | ||
567 | /* | |
568 | * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it | |
569 | * will never back again. It may cycle between running/verififying/fsyncing. | |
570 | * Once the thread reaches TD_EXITED, it is just waiting for the core to | |
571 | * reap it. | |
572 | */ | |
573 | enum { | |
574 | TD_NOT_CREATED = 0, | |
575 | TD_CREATED, | |
576 | TD_INITIALIZED, | |
577 | TD_RUNNING, | |
578 | TD_VERIFYING, | |
579 | TD_FSYNCING, | |
580 | TD_EXITED, | |
581 | TD_REAPED, | |
582 | }; | |
583 | ||
e29d1b70 JA |
584 | /* |
585 | * Verify helpers | |
586 | */ | |
587 | extern void populate_verify_io_u(struct thread_data *, struct io_u *); | |
588 | extern int get_next_verify(struct thread_data *td, struct io_u *); | |
a9619d44 | 589 | extern int do_io_u_verify(struct thread_data *, struct io_u **); |
e29d1b70 | 590 | |
2f9ade3c JA |
591 | /* |
592 | * Memory helpers | |
593 | */ | |
594 | extern int fio_pin_memory(void); | |
595 | extern void fio_unpin_memory(void); | |
596 | extern int allocate_io_mem(struct thread_data *); | |
597 | extern void free_io_mem(struct thread_data *); | |
598 | ||
10ba535a JA |
599 | /* |
600 | * io unit handling | |
601 | */ | |
602 | #define queue_full(td) list_empty(&(td)->io_u_freelist) | |
603 | extern struct io_u *__get_io_u(struct thread_data *); | |
604 | extern struct io_u *get_io_u(struct thread_data *, struct fio_file *); | |
605 | extern void put_io_u(struct thread_data *, struct io_u *); | |
606 | extern void ios_completed(struct thread_data *, struct io_completion_data *); | |
607 | extern void io_completed(struct thread_data *, struct io_u *, struct io_completion_data *); | |
608 | ||
609 | /* | |
610 | * io engine entry points | |
611 | */ | |
8c16d840 | 612 | extern int td_io_init(struct thread_data *); |
10ba535a JA |
613 | extern int td_io_prep(struct thread_data *, struct io_u *); |
614 | extern int td_io_queue(struct thread_data *, struct io_u *); | |
615 | extern int td_io_sync(struct thread_data *, struct fio_file *); | |
616 | extern int td_io_getevents(struct thread_data *, int, int, struct timespec *); | |
617 | ||
bbfd6b00 JA |
618 | /* |
619 | * This is a pretty crappy semaphore implementation, but with the use that fio | |
620 | * has (just signalling start/go conditions), it doesn't have to be better. | |
621 | * Naturally this would not work for any type of contended semaphore or | |
622 | * for real locking. | |
623 | */ | |
1056eaad | 624 | static inline void fio_sem_init(volatile int *sem, int val) |
bbfd6b00 JA |
625 | { |
626 | *sem = val; | |
627 | } | |
628 | ||
1056eaad | 629 | static inline void fio_sem_down(volatile int *sem) |
bbfd6b00 JA |
630 | { |
631 | while (*sem == 0) | |
632 | usleep(10000); | |
633 | ||
634 | (*sem)--; | |
635 | } | |
636 | ||
1056eaad | 637 | static inline void fio_sem_up(volatile int *sem) |
bbfd6b00 JA |
638 | { |
639 | (*sem)++; | |
640 | } | |
641 | ||
3b70d7e5 JA |
642 | /* |
643 | * If logging output to a file, stderr should go to both stderr and f_err | |
644 | */ | |
645 | #define log_err(args...) do { \ | |
646 | fprintf(f_err, ##args); \ | |
647 | if (f_err != stderr) \ | |
648 | fprintf(stderr, ##args); \ | |
649 | } while (0) | |
650 | ||
2866c82d | 651 | struct ioengine_ops { |
5f350952 | 652 | struct list_head list; |
2866c82d JA |
653 | char name[16]; |
654 | int version; | |
655 | int flags; | |
ea2877a4 | 656 | int (*setup)(struct thread_data *); |
2866c82d JA |
657 | int (*init)(struct thread_data *); |
658 | int (*prep)(struct thread_data *, struct io_u *); | |
659 | int (*queue)(struct thread_data *, struct io_u *); | |
660 | int (*getevents)(struct thread_data *, int, int, struct timespec *); | |
661 | struct io_u *(*event)(struct thread_data *, int); | |
662 | int (*cancel)(struct thread_data *, struct io_u *); | |
663 | void (*cleanup)(struct thread_data *); | |
2866c82d JA |
664 | void *data; |
665 | void *dlhandle; | |
666 | }; | |
667 | ||
87dc1ab1 | 668 | #define FIO_IOOPS_VERSION 3 |
2866c82d | 669 | |
b4692828 | 670 | extern struct ioengine_ops *load_ioengine(struct thread_data *, const char *); |
5f350952 JA |
671 | extern int register_ioengine(struct ioengine_ops *); |
672 | extern void unregister_ioengine(struct ioengine_ops *); | |
2866c82d JA |
673 | extern void close_ioengine(struct thread_data *); |
674 | ||
675 | /* | |
676 | * Mark unused variables passed to ops functions as unused, to silence gcc | |
677 | */ | |
678 | #define fio_unused __attribute((__unused__)) | |
5f350952 JA |
679 | #define fio_init __attribute__((constructor)) |
680 | #define fio_exit __attribute__((destructor)) | |
2866c82d | 681 | |
34572e28 JA |
682 | #define for_each_td(td, i) \ |
683 | for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++) | |
53cdc686 | 684 | #define for_each_file(td, f, i) \ |
34572e28 | 685 | for ((i) = 0, (f) = &(td)->files[0]; (i) < (int) (td)->nr_files; (i)++, (f)++) |
53cdc686 | 686 | |
0032bf9f JA |
687 | #define fio_assert(td, cond) do { \ |
688 | if (!(cond)) { \ | |
340fd243 | 689 | int *__foo = NULL; \ |
0032bf9f JA |
690 | fprintf(stderr, "file:%s:%d, assert %s failed\n", __FILE__, __LINE__, #cond); \ |
691 | (td)->runstate = TD_EXITED; \ | |
437c9b71 | 692 | (td)->error = EFAULT; \ |
340fd243 | 693 | *__foo = 0; \ |
0032bf9f JA |
694 | } \ |
695 | } while (0) | |
696 | ||
ebac4655 | 697 | #endif |