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 | ||
b6959b55 | 21 | #ifdef FIO_HAVE_SYSLET |
a4f4fdd7 | 22 | #include "syslet.h" |
b6959b55 | 23 | #endif |
a4f4fdd7 | 24 | |
1e97cce9 JA |
25 | enum fio_ddir { |
26 | DDIR_READ = 0, | |
27 | DDIR_WRITE, | |
28 | DDIR_SYNC, | |
29 | }; | |
30 | ||
1c9e06ee JA |
31 | /* |
32 | * Use for maintaining statistics | |
33 | */ | |
ebac4655 | 34 | struct io_stat { |
ebac4655 JA |
35 | unsigned long max_val; |
36 | unsigned long min_val; | |
37 | unsigned long samples; | |
68704084 JA |
38 | |
39 | double mean; | |
40 | double S; | |
ebac4655 JA |
41 | }; |
42 | ||
1c9e06ee JA |
43 | /* |
44 | * A single data sample | |
45 | */ | |
ebac4655 JA |
46 | struct io_sample { |
47 | unsigned long time; | |
48 | unsigned long val; | |
1e97cce9 | 49 | enum fio_ddir ddir; |
ebac4655 JA |
50 | }; |
51 | ||
1c9e06ee JA |
52 | /* |
53 | * Dynamically growing data sample log | |
54 | */ | |
ebac4655 JA |
55 | struct io_log { |
56 | unsigned long nr_samples; | |
57 | unsigned long max_samples; | |
58 | struct io_sample *log; | |
59 | }; | |
60 | ||
1c9e06ee JA |
61 | /* |
62 | * When logging io actions, this matches a single sent io_u | |
63 | */ | |
ebac4655 JA |
64 | struct io_piece { |
65 | struct list_head list; | |
53cdc686 | 66 | struct fio_file *file; |
ebac4655 | 67 | unsigned long long offset; |
a4f4fdd7 | 68 | unsigned long len; |
1e97cce9 | 69 | enum fio_ddir ddir; |
ebac4655 JA |
70 | }; |
71 | ||
a4f4fdd7 JA |
72 | #ifdef FIO_HAVE_SYSLET |
73 | struct syslet_req { | |
74 | struct syslet_uatom atom; | |
a4f4fdd7 JA |
75 | long ret; |
76 | }; | |
77 | #endif | |
78 | ||
ebac4655 JA |
79 | /* |
80 | * The io unit | |
81 | */ | |
82 | struct io_u { | |
83 | union { | |
84 | #ifdef FIO_HAVE_LIBAIO | |
85 | struct iocb iocb; | |
86 | #endif | |
87 | #ifdef FIO_HAVE_POSIXAIO | |
88 | struct aiocb aiocb; | |
89 | #endif | |
90 | #ifdef FIO_HAVE_SGIO | |
91 | struct sg_io_hdr hdr; | |
a4f4fdd7 JA |
92 | #endif |
93 | #ifdef FIO_HAVE_SYSLET | |
a2e1b08a | 94 | struct syslet_req req; |
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; | |
e26f8f7a | 199 | int 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 | |
ec118304 | 223 | #define FIO_IO_U_LAT_NR 12 |
71619dc2 | 224 | |
e9c047a0 JA |
225 | /* |
226 | * This describes a single thread/process executing a fio job. | |
227 | */ | |
ebac4655 | 228 | struct thread_data { |
61697c37 | 229 | char *description; |
b4692828 | 230 | char *name; |
ef899b63 | 231 | char *directory; |
13f8e2d2 | 232 | char *filename; |
ebac4655 JA |
233 | char verror[80]; |
234 | pthread_t thread; | |
235 | int thread_number; | |
236 | int groupid; | |
e9c047a0 | 237 | enum fio_filetype filetype; |
53cdc686 JA |
238 | struct fio_file *files; |
239 | unsigned int nr_files; | |
13f8e2d2 | 240 | unsigned int nr_uniq_files; |
53cdc686 | 241 | unsigned int next_file; |
ebac4655 | 242 | int error; |
ebac4655 JA |
243 | pid_t pid; |
244 | char *orig_buffer; | |
245 | size_t orig_buffer_size; | |
246 | volatile int terminate; | |
247 | volatile int runstate; | |
e9c047a0 | 248 | enum fio_ddir ddir; |
3d60d1ed | 249 | unsigned int iomix; |
ebac4655 | 250 | unsigned int ioprio; |
87dc1ab1 | 251 | unsigned int last_was_sync; |
e9c047a0 | 252 | |
9158d2f7 JA |
253 | unsigned int sequential; |
254 | unsigned int odirect; | |
255 | unsigned int invalidate_cache; | |
256 | unsigned int create_serialize; | |
257 | unsigned int create_fsync; | |
258 | unsigned int end_fsync; | |
259 | unsigned int sync_io; | |
260 | unsigned int verify; | |
261 | unsigned int use_thread; | |
262 | unsigned int unlink; | |
263 | unsigned int do_disk_util; | |
264 | unsigned int override_sync; | |
265 | unsigned int rand_repeatable; | |
266 | unsigned int write_lat_log; | |
267 | unsigned int write_bw_log; | |
bb8895e0 | 268 | unsigned int norandommap; |
690adba3 | 269 | unsigned int bs_unaligned; |
e9c047a0 | 270 | |
a00735e6 JA |
271 | unsigned int bs[2]; |
272 | unsigned int min_bs[2]; | |
273 | unsigned int max_bs[2]; | |
56bb17f2 | 274 | unsigned int hugepage_size; |
a00735e6 | 275 | unsigned int rw_min_bs; |
ebac4655 | 276 | unsigned int thinktime; |
9c1f7434 | 277 | unsigned int thinktime_blocks; |
ebac4655 JA |
278 | unsigned int fsync_blocks; |
279 | unsigned int start_delay; | |
906c8d75 | 280 | unsigned long timeout; |
ebac4655 | 281 | unsigned int overwrite; |
ebac4655 | 282 | unsigned int bw_avg_time; |
ebac4655 | 283 | unsigned int loops; |
20dc95c4 JA |
284 | unsigned long long zone_size; |
285 | unsigned long long zone_skip; | |
e9c047a0 | 286 | enum fio_memtype mem_type; |
313cb206 JA |
287 | char *mmapfile; |
288 | int mmapfd; | |
ebac4655 JA |
289 | unsigned int stonewall; |
290 | unsigned int numjobs; | |
ebac4655 JA |
291 | unsigned int iodepth; |
292 | os_cpu_mask_t cpumask; | |
aea47d44 | 293 | unsigned int iolog; |
843a7413 | 294 | unsigned int read_iolog; |
a6ccc7be JA |
295 | unsigned int rwmixcycle; |
296 | unsigned int rwmixread; | |
e1f36503 | 297 | unsigned int rwmixwrite; |
b6f4d880 | 298 | unsigned int nice; |
aea47d44 | 299 | |
076efc7c JA |
300 | char *read_iolog_file; |
301 | char *write_iolog_file; | |
843a7413 JA |
302 | void *iolog_buf; |
303 | FILE *iolog_f; | |
ebac4655 | 304 | |
da86774e | 305 | char *sysfs_root; |
da86774e JA |
306 | char *ioscheduler; |
307 | ||
6dfd46b9 JA |
308 | os_random_state_t bsrange_state; |
309 | os_random_state_t verify_state; | |
ebac4655 JA |
310 | |
311 | int shm_id; | |
312 | ||
e9c047a0 JA |
313 | /* |
314 | * IO engine hooks, contains everything needed to submit an io_u | |
315 | * to any of the available IO engines. | |
316 | */ | |
2866c82d | 317 | struct ioengine_ops *io_ops; |
ebac4655 | 318 | |
e9c047a0 JA |
319 | /* |
320 | * Current IO depth and list of free and busy io_u's. | |
321 | */ | |
ebac4655 | 322 | unsigned int cur_depth; |
71619dc2 | 323 | unsigned int io_u_map[FIO_IO_U_MAP_NR]; |
ec118304 | 324 | unsigned int io_u_lat[FIO_IO_U_LAT_NR]; |
71619dc2 | 325 | unsigned long total_io_u; |
ebac4655 JA |
326 | struct list_head io_u_freelist; |
327 | struct list_head io_u_busylist; | |
328 | ||
e9c047a0 JA |
329 | /* |
330 | * Rate state | |
331 | */ | |
ebac4655 JA |
332 | unsigned int rate; |
333 | unsigned int ratemin; | |
334 | unsigned int ratecycle; | |
335 | unsigned long rate_usec_cycle; | |
336 | long rate_pending_usleep; | |
337 | unsigned long rate_bytes; | |
338 | struct timeval lastrate; | |
339 | ||
340 | unsigned long runtime[2]; /* msec */ | |
341 | unsigned long long io_size; | |
53cdc686 JA |
342 | unsigned long long total_file_size; |
343 | unsigned long long start_offset; | |
ebac4655 JA |
344 | unsigned long long total_io_size; |
345 | ||
9104f874 JA |
346 | unsigned long long io_blocks[2]; |
347 | unsigned long long io_bytes[2]; | |
348 | unsigned long long zone_bytes; | |
349 | unsigned long long this_io_bytes[2]; | |
bbfd6b00 | 350 | volatile int mutex; |
ebac4655 | 351 | |
e9c047a0 JA |
352 | /* |
353 | * State for random io, a bitmap of blocks done vs not done | |
354 | */ | |
6dfd46b9 | 355 | os_random_state_t random_state; |
ebac4655 | 356 | |
b990b5c0 JA |
357 | /* |
358 | * CPU "io" cycle burner | |
359 | */ | |
360 | unsigned int cpuload; | |
361 | unsigned int cpucycle; | |
362 | ||
ebac4655 JA |
363 | /* |
364 | * bandwidth and latency stats | |
365 | */ | |
366 | struct io_stat clat_stat[2]; /* completion latency */ | |
367 | struct io_stat slat_stat[2]; /* submission latency */ | |
368 | struct io_stat bw_stat[2]; /* bandwidth stats */ | |
369 | ||
9104f874 | 370 | unsigned long long stat_io_bytes[2]; |
ebac4655 JA |
371 | struct timeval stat_sample_time[2]; |
372 | ||
373 | struct io_log *slat_log; | |
374 | struct io_log *clat_log; | |
375 | struct io_log *bw_log; | |
376 | ||
377 | struct timeval start; /* start of this loop */ | |
378 | struct timeval epoch; /* time job was started */ | |
69008999 | 379 | struct timeval end_time;/* time job ended */ |
ebac4655 | 380 | |
e9c047a0 JA |
381 | /* |
382 | * fio system usage accounting | |
383 | */ | |
ebac4655 JA |
384 | struct rusage ru_start; |
385 | struct rusage ru_end; | |
386 | unsigned long usr_time; | |
387 | unsigned long sys_time; | |
388 | unsigned long ctx; | |
389 | ||
e9c047a0 JA |
390 | /* |
391 | * read/write mixed workload state | |
392 | */ | |
6dfd46b9 | 393 | os_random_state_t rwmix_state; |
a6ccc7be | 394 | struct timeval rwmix_switch; |
e9c047a0 | 395 | enum fio_ddir rwmix_ddir; |
a6ccc7be | 396 | |
4e0ba8af JA |
397 | /* |
398 | * Pre-run and post-run shell | |
399 | */ | |
400 | char *exec_prerun; | |
401 | char *exec_postrun; | |
402 | ||
e9c047a0 JA |
403 | /* |
404 | * IO historic logs | |
405 | */ | |
ebac4655 | 406 | struct list_head io_hist_list; |
aea47d44 | 407 | struct list_head io_log_list; |
ebac4655 JA |
408 | }; |
409 | ||
b990b5c0 | 410 | #define __td_verror(td, err, msg) \ |
ebac4655 JA |
411 | do { \ |
412 | int e = (err); \ | |
413 | (td)->error = e; \ | |
b990b5c0 | 414 | snprintf(td->verror, sizeof(td->verror) - 1, "file:%s:%d, error=%s", __FILE__, __LINE__, (msg)); \ |
ebac4655 JA |
415 | } while (0) |
416 | ||
b990b5c0 JA |
417 | |
418 | #define td_verror(td, err) __td_verror((td), (err), strerror((err))) | |
419 | #define td_vmsg(td, err, msg) __td_verror((td), (err), (msg)) | |
420 | ||
ebac4655 JA |
421 | extern int exitall_on_terminate; |
422 | extern int thread_number; | |
423 | extern int shm_id; | |
424 | extern int groupid; | |
c6ae0a5b | 425 | extern int terse_output; |
eb8bbf48 JA |
426 | extern FILE *f_out; |
427 | extern FILE *f_err; | |
53cdc686 | 428 | extern int temp_stall_ts; |
1e97cce9 | 429 | extern unsigned long long mlock_size; |
ebac4655 JA |
430 | |
431 | extern struct thread_data *threads; | |
432 | ||
ebac4655 JA |
433 | #define td_read(td) ((td)->ddir == DDIR_READ) |
434 | #define td_write(td) ((td)->ddir == DDIR_WRITE) | |
3d60d1ed | 435 | #define td_rw(td) ((td)->iomix != 0) |
ebac4655 JA |
436 | |
437 | #define BLOCKS_PER_MAP (8 * sizeof(long)) | |
a00735e6 | 438 | #define TO_MAP_BLOCK(td, f, b) ((b) - ((f)->file_offset / (td)->rw_min_bs)) |
53cdc686 JA |
439 | #define RAND_MAP_IDX(td, f, b) (TO_MAP_BLOCK(td, f, b) / BLOCKS_PER_MAP) |
440 | #define RAND_MAP_BIT(td, f, b) (TO_MAP_BLOCK(td, f, b) & (BLOCKS_PER_MAP - 1)) | |
ebac4655 JA |
441 | |
442 | #define MAX_JOBS (1024) | |
443 | ||
87dc1ab1 JA |
444 | static inline int should_fsync(struct thread_data *td) |
445 | { | |
446 | if (td->last_was_sync) | |
447 | return 0; | |
448 | if (td->odirect) | |
449 | return 0; | |
450 | if (td_write(td) || td_rw(td) || td->override_sync) | |
451 | return 1; | |
452 | ||
453 | return 0; | |
454 | } | |
455 | ||
1c9e06ee JA |
456 | /* |
457 | * Disk utils as read in /sys/block/<dev>/stat | |
458 | */ | |
ebac4655 JA |
459 | struct disk_util_stat { |
460 | unsigned ios[2]; | |
461 | unsigned merges[2]; | |
462 | unsigned long long sectors[2]; | |
463 | unsigned ticks[2]; | |
464 | unsigned io_ticks; | |
465 | unsigned time_in_queue; | |
466 | }; | |
467 | ||
1c9e06ee JA |
468 | /* |
469 | * Per-device disk util management | |
470 | */ | |
ebac4655 JA |
471 | struct disk_util { |
472 | struct list_head list; | |
473 | ||
474 | char *name; | |
475 | char path[256]; | |
476 | dev_t dev; | |
477 | ||
478 | struct disk_util_stat dus; | |
479 | struct disk_util_stat last_dus; | |
480 | ||
481 | unsigned long msec; | |
482 | struct timeval time; | |
483 | }; | |
484 | ||
1c9e06ee JA |
485 | /* |
486 | * Used for passing io_u completion data | |
487 | */ | |
ebac4655 JA |
488 | struct io_completion_data { |
489 | int nr; /* input */ | |
490 | ||
491 | int error; /* output */ | |
492 | unsigned long bytes_done[2]; /* output */ | |
02bcaa8c | 493 | struct timeval time; /* output */ |
ebac4655 JA |
494 | }; |
495 | ||
496 | #define DISK_UTIL_MSEC (250) | |
497 | ||
6a0106a0 JA |
498 | #ifndef min |
499 | #define min(a, b) ((a) < (b) ? (a) : (b)) | |
500 | #endif | |
a00735e6 JA |
501 | #ifndef max |
502 | #define max(a, b) ((a) > (b) ? (a) : (b)) | |
503 | #endif | |
6a0106a0 | 504 | |
6796209a JA |
505 | /* |
506 | * Log exports | |
507 | */ | |
508 | extern int read_iolog_get(struct thread_data *, struct io_u *); | |
509 | extern void write_iolog_put(struct thread_data *, struct io_u *); | |
510 | extern int init_iolog(struct thread_data *td); | |
511 | extern void log_io_piece(struct thread_data *, struct io_u *); | |
512 | extern void prune_io_piece_log(struct thread_data *); | |
513 | extern void write_iolog_close(struct thread_data *); | |
514 | ||
515 | /* | |
516 | * Logging | |
517 | */ | |
1e97cce9 JA |
518 | extern void add_clat_sample(struct thread_data *, enum fio_ddir, unsigned long); |
519 | extern void add_slat_sample(struct thread_data *, enum fio_ddir, unsigned long); | |
520 | extern void add_bw_sample(struct thread_data *, enum fio_ddir, struct timeval *); | |
6796209a JA |
521 | extern void show_run_stats(void); |
522 | extern void init_disk_util(struct thread_data *); | |
523 | extern void update_rusage_stat(struct thread_data *); | |
524 | extern void update_io_ticks(void); | |
525 | extern void disk_util_timer_arm(void); | |
8914a9d8 JA |
526 | extern void setup_log(struct io_log **); |
527 | extern void finish_log(struct thread_data *, struct io_log *, const char *); | |
bb3884d8 | 528 | extern void __finish_log(struct io_log *, const char *); |
8914a9d8 | 529 | extern int setup_rate(struct thread_data *); |
bb3884d8 JA |
530 | extern struct io_log *agg_io_log[2]; |
531 | extern int write_bw_log; | |
532 | extern void add_agg_sample(unsigned long, enum fio_ddir); | |
6796209a JA |
533 | |
534 | /* | |
535 | * Time functions | |
536 | */ | |
537 | extern unsigned long utime_since(struct timeval *, struct timeval *); | |
69008999 | 538 | extern unsigned long utime_since_now(struct timeval *); |
6796209a JA |
539 | extern unsigned long mtime_since(struct timeval *, struct timeval *); |
540 | extern unsigned long mtime_since_now(struct timeval *); | |
541 | extern unsigned long time_since_now(struct timeval *); | |
263e529f | 542 | extern unsigned long mtime_since_genesis(void); |
b990b5c0 | 543 | extern void __usec_sleep(unsigned int); |
6796209a | 544 | extern void usec_sleep(struct thread_data *, unsigned long); |
a00735e6 | 545 | extern void rate_throttle(struct thread_data *, unsigned long, unsigned int, int); |
6043c579 | 546 | extern void fill_start_time(struct timeval *); |
02bcaa8c | 547 | extern void fio_gettime(struct timeval *, void *); |
6796209a | 548 | |
8914a9d8 JA |
549 | /* |
550 | * Init functions | |
551 | */ | |
552 | extern int parse_options(int, char **); | |
553 | extern int init_random_state(struct thread_data *); | |
554 | ||
53cdc686 JA |
555 | /* |
556 | * File setup/shutdown | |
557 | */ | |
558 | extern void close_files(struct thread_data *); | |
559 | extern int setup_files(struct thread_data *); | |
21972cde | 560 | extern int open_files(struct thread_data *); |
e5b401d4 | 561 | extern int file_invalidate_cache(struct thread_data *, struct fio_file *); |
53cdc686 | 562 | |
263e529f JA |
563 | /* |
564 | * ETA/status stuff | |
565 | */ | |
566 | extern void print_thread_status(void); | |
567 | extern void print_status_init(int); | |
568 | ||
569 | /* | |
570 | * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it | |
571 | * will never back again. It may cycle between running/verififying/fsyncing. | |
572 | * Once the thread reaches TD_EXITED, it is just waiting for the core to | |
573 | * reap it. | |
574 | */ | |
575 | enum { | |
576 | TD_NOT_CREATED = 0, | |
577 | TD_CREATED, | |
578 | TD_INITIALIZED, | |
579 | TD_RUNNING, | |
580 | TD_VERIFYING, | |
581 | TD_FSYNCING, | |
582 | TD_EXITED, | |
583 | TD_REAPED, | |
584 | }; | |
585 | ||
e29d1b70 JA |
586 | /* |
587 | * Verify helpers | |
588 | */ | |
589 | extern void populate_verify_io_u(struct thread_data *, struct io_u *); | |
590 | extern int get_next_verify(struct thread_data *td, struct io_u *); | |
a9619d44 | 591 | extern int do_io_u_verify(struct thread_data *, struct io_u **); |
e29d1b70 | 592 | |
2f9ade3c JA |
593 | /* |
594 | * Memory helpers | |
595 | */ | |
596 | extern int fio_pin_memory(void); | |
597 | extern void fio_unpin_memory(void); | |
598 | extern int allocate_io_mem(struct thread_data *); | |
599 | extern void free_io_mem(struct thread_data *); | |
600 | ||
10ba535a JA |
601 | /* |
602 | * io unit handling | |
603 | */ | |
604 | #define queue_full(td) list_empty(&(td)->io_u_freelist) | |
605 | extern struct io_u *__get_io_u(struct thread_data *); | |
606 | extern struct io_u *get_io_u(struct thread_data *, struct fio_file *); | |
607 | extern void put_io_u(struct thread_data *, struct io_u *); | |
608 | extern void ios_completed(struct thread_data *, struct io_completion_data *); | |
609 | extern void io_completed(struct thread_data *, struct io_u *, struct io_completion_data *); | |
610 | ||
611 | /* | |
612 | * io engine entry points | |
613 | */ | |
8c16d840 | 614 | extern int td_io_init(struct thread_data *); |
10ba535a JA |
615 | extern int td_io_prep(struct thread_data *, struct io_u *); |
616 | extern int td_io_queue(struct thread_data *, struct io_u *); | |
617 | extern int td_io_sync(struct thread_data *, struct fio_file *); | |
618 | extern int td_io_getevents(struct thread_data *, int, int, struct timespec *); | |
619 | ||
bbfd6b00 JA |
620 | /* |
621 | * This is a pretty crappy semaphore implementation, but with the use that fio | |
622 | * has (just signalling start/go conditions), it doesn't have to be better. | |
623 | * Naturally this would not work for any type of contended semaphore or | |
624 | * for real locking. | |
625 | */ | |
1056eaad | 626 | static inline void fio_sem_init(volatile int *sem, int val) |
bbfd6b00 JA |
627 | { |
628 | *sem = val; | |
629 | } | |
630 | ||
1056eaad | 631 | static inline void fio_sem_down(volatile int *sem) |
bbfd6b00 JA |
632 | { |
633 | while (*sem == 0) | |
634 | usleep(10000); | |
635 | ||
636 | (*sem)--; | |
637 | } | |
638 | ||
1056eaad | 639 | static inline void fio_sem_up(volatile int *sem) |
bbfd6b00 JA |
640 | { |
641 | (*sem)++; | |
642 | } | |
643 | ||
3b70d7e5 JA |
644 | /* |
645 | * If logging output to a file, stderr should go to both stderr and f_err | |
646 | */ | |
647 | #define log_err(args...) do { \ | |
648 | fprintf(f_err, ##args); \ | |
649 | if (f_err != stderr) \ | |
650 | fprintf(stderr, ##args); \ | |
651 | } while (0) | |
652 | ||
2866c82d | 653 | struct ioengine_ops { |
5f350952 | 654 | struct list_head list; |
2866c82d JA |
655 | char name[16]; |
656 | int version; | |
657 | int flags; | |
ea2877a4 | 658 | int (*setup)(struct thread_data *); |
2866c82d JA |
659 | int (*init)(struct thread_data *); |
660 | int (*prep)(struct thread_data *, struct io_u *); | |
661 | int (*queue)(struct thread_data *, struct io_u *); | |
662 | int (*getevents)(struct thread_data *, int, int, struct timespec *); | |
663 | struct io_u *(*event)(struct thread_data *, int); | |
664 | int (*cancel)(struct thread_data *, struct io_u *); | |
665 | void (*cleanup)(struct thread_data *); | |
2866c82d JA |
666 | void *data; |
667 | void *dlhandle; | |
668 | }; | |
669 | ||
87dc1ab1 | 670 | #define FIO_IOOPS_VERSION 3 |
2866c82d | 671 | |
b4692828 | 672 | extern struct ioengine_ops *load_ioengine(struct thread_data *, const char *); |
5f350952 JA |
673 | extern int register_ioengine(struct ioengine_ops *); |
674 | extern void unregister_ioengine(struct ioengine_ops *); | |
2866c82d JA |
675 | extern void close_ioengine(struct thread_data *); |
676 | ||
677 | /* | |
678 | * Mark unused variables passed to ops functions as unused, to silence gcc | |
679 | */ | |
680 | #define fio_unused __attribute((__unused__)) | |
5f350952 JA |
681 | #define fio_init __attribute__((constructor)) |
682 | #define fio_exit __attribute__((destructor)) | |
2866c82d | 683 | |
34572e28 JA |
684 | #define for_each_td(td, i) \ |
685 | for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++) | |
53cdc686 | 686 | #define for_each_file(td, f, i) \ |
34572e28 | 687 | for ((i) = 0, (f) = &(td)->files[0]; (i) < (int) (td)->nr_files; (i)++, (f)++) |
53cdc686 | 688 | |
0032bf9f JA |
689 | #define fio_assert(td, cond) do { \ |
690 | if (!(cond)) { \ | |
340fd243 | 691 | int *__foo = NULL; \ |
0032bf9f JA |
692 | fprintf(stderr, "file:%s:%d, assert %s failed\n", __FILE__, __LINE__, #cond); \ |
693 | (td)->runstate = TD_EXITED; \ | |
437c9b71 | 694 | (td)->error = EFAULT; \ |
340fd243 | 695 | *__foo = 0; \ |
0032bf9f JA |
696 | } \ |
697 | } while (0) | |
698 | ||
ebac4655 | 699 | #endif |