blob: 7ac5734308bff9d72bfa2b2a8c6b93844fdb994c [file] [log] [blame]
Jens Axboeebac4652005-12-08 15:25:21 +01001#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>
Jens Axboe3c39a372006-06-06 20:56:12 +02009#include <errno.h>
10#include <stdlib.h>
11#include <stdio.h>
Jens Axboe6d6f0312006-06-07 21:39:13 +020012#include <unistd.h>
Jens Axboe34cfcda2006-11-03 14:00:45 +010013#include <string.h>
Jens Axboe214e1ec2007-03-15 10:48:13 +010014#include <getopt.h>
Jens Axboeebac4652005-12-08 15:25:21 +010015
Jens Axboe317b95d2007-04-02 21:36:44 +020016#include "compiler/compiler.h"
Jens Axboeebac4652005-12-08 15:25:21 +010017#include "list.h"
Jens Axboe4b878982007-03-26 09:32:22 +020018#include "rbtree.h"
Jens Axboeebac4652005-12-08 15:25:21 +010019#include "md5.h"
20#include "crc32.h"
Jens Axboe317b95d2007-04-02 21:36:44 +020021#include "arch/arch.h"
22#include "os/os.h"
Jens Axboe07739b52007-03-08 20:25:46 +010023#include "mutex.h"
Jens Axboeebac4652005-12-08 15:25:21 +010024
Jens Axboeb6959b52007-02-14 21:40:27 +000025#ifdef FIO_HAVE_SYSLET
Jens Axboea4f4fdd2007-02-14 01:16:39 +010026#include "syslet.h"
Jens Axboeb6959b52007-02-14 21:40:27 +000027#endif
Jens Axboea4f4fdd2007-02-14 01:16:39 +010028
Davide Libenzi609342f2007-03-21 08:46:18 +010029#ifdef FIO_HAVE_GUASI
30#include <guasi.h>
31#endif
32
Jens Axboe1e97cce2006-12-05 11:44:16 +010033enum fio_ddir {
34 DDIR_READ = 0,
35 DDIR_WRITE,
36 DDIR_SYNC,
37};
38
Jens Axboe413dd452007-02-23 09:26:09 +010039enum td_ddir {
Jens Axboeb1ec1da2007-02-23 10:29:16 +010040 TD_DDIR_READ = 1 << 0,
41 TD_DDIR_WRITE = 1 << 1,
42 TD_DDIR_RAND = 1 << 2,
43 TD_DDIR_RW = TD_DDIR_READ | TD_DDIR_WRITE,
44 TD_DDIR_RANDREAD = TD_DDIR_READ | TD_DDIR_RAND,
Joel Becker7ff1c142007-03-03 12:03:29 +010045 TD_DDIR_RANDWRITE = TD_DDIR_WRITE | TD_DDIR_RAND,
Jens Axboeb1ec1da2007-02-23 10:29:16 +010046 TD_DDIR_RANDRW = TD_DDIR_RW | TD_DDIR_RAND,
Jens Axboe413dd452007-02-23 09:26:09 +010047};
48
Jens Axboe1c9e06e2007-02-11 04:07:57 +010049/*
50 * Use for maintaining statistics
51 */
Jens Axboeebac4652005-12-08 15:25:21 +010052struct io_stat {
Jens Axboeebac4652005-12-08 15:25:21 +010053 unsigned long max_val;
54 unsigned long min_val;
55 unsigned long samples;
Jens Axboe68704082007-01-10 19:56:37 +010056
57 double mean;
58 double S;
Jens Axboeebac4652005-12-08 15:25:21 +010059};
60
Jens Axboe1c9e06e2007-02-11 04:07:57 +010061/*
62 * A single data sample
63 */
Jens Axboeebac4652005-12-08 15:25:21 +010064struct io_sample {
65 unsigned long time;
66 unsigned long val;
Jens Axboe1e97cce2006-12-05 11:44:16 +010067 enum fio_ddir ddir;
Jens Axboeebac4652005-12-08 15:25:21 +010068};
69
Jens Axboe1c9e06e2007-02-11 04:07:57 +010070/*
71 * Dynamically growing data sample log
72 */
Jens Axboeebac4652005-12-08 15:25:21 +010073struct io_log {
74 unsigned long nr_samples;
75 unsigned long max_samples;
76 struct io_sample *log;
77};
78
Jens Axboe1c9e06e2007-02-11 04:07:57 +010079/*
80 * When logging io actions, this matches a single sent io_u
81 */
Jens Axboeebac4652005-12-08 15:25:21 +010082struct io_piece {
Jens Axboe4b878982007-03-26 09:32:22 +020083 union {
84 struct rb_node rb_node;
85 struct list_head list;
86 };
Jens Axboe53cdc682006-10-18 11:50:58 +020087 struct fio_file *file;
Jens Axboeebac4652005-12-08 15:25:21 +010088 unsigned long long offset;
Jens Axboea4f4fdd2007-02-14 01:16:39 +010089 unsigned long len;
Jens Axboe1e97cce2006-12-05 11:44:16 +010090 enum fio_ddir ddir;
Jens Axboeebac4652005-12-08 15:25:21 +010091};
92
Jens Axboea4f4fdd2007-02-14 01:16:39 +010093#ifdef FIO_HAVE_SYSLET
94struct syslet_req {
Jens Axboe5b38ee82007-02-26 10:44:22 +010095 struct syslet_uatom atom; /* the atom to submit */
96 struct syslet_uatom *head; /* head of the sequence */
97 long ret; /* syscall return value */
Jens Axboea4f4fdd2007-02-14 01:16:39 +010098};
99#endif
100
Jens Axboe0c6e7512007-02-22 11:19:39 +0100101enum {
102 IO_U_F_FREE = 1 << 0,
103 IO_U_F_FLIGHT = 1 << 1,
104};
105
Jens Axboe36690c92007-03-26 10:23:34 +0200106struct thread_data;
107
Jens Axboeebac4652005-12-08 15:25:21 +0100108/*
109 * The io unit
110 */
111struct io_u {
112 union {
113#ifdef FIO_HAVE_LIBAIO
114 struct iocb iocb;
115#endif
116#ifdef FIO_HAVE_POSIXAIO
117 struct aiocb aiocb;
118#endif
119#ifdef FIO_HAVE_SGIO
120 struct sg_io_hdr hdr;
121#endif
Jens Axboea4f4fdd2007-02-14 01:16:39 +0100122#ifdef FIO_HAVE_SYSLET
Jens Axboea2e1b082007-02-14 08:06:19 +0100123 struct syslet_req req;
Jens Axboea4f4fdd2007-02-14 01:16:39 +0100124#endif
Davide Libenzi609342f2007-03-21 08:46:18 +0100125#ifdef FIO_HAVE_GUASI
126 guasi_req_t greq;
127#endif
Jens Axboeebac4652005-12-08 15:25:21 +0100128 };
129 struct timeval start_time;
130 struct timeval issue_time;
131
Jens Axboe1c9e06e2007-02-11 04:07:57 +0100132 /*
133 * Allocated/set buffer and length
134 */
Jens Axboe6b9cea22006-10-30 17:00:24 +0100135 void *buf;
Jens Axboea4f4fdd2007-02-14 01:16:39 +0100136 unsigned long buflen;
Jens Axboeebac4652005-12-08 15:25:21 +0100137 unsigned long long offset;
138
Jens Axboe1c9e06e2007-02-11 04:07:57 +0100139 /*
140 * IO engine state, may be different from above when we get
141 * partial transfers / residual data counts
142 */
Jens Axboecec6b552007-02-06 20:15:38 +0100143 void *xfer_buf;
Jens Axboea4f4fdd2007-02-14 01:16:39 +0100144 unsigned long xfer_buflen;
Jens Axboecec6b552007-02-06 20:15:38 +0100145
Jens Axboeebac4652005-12-08 15:25:21 +0100146 unsigned int resid;
147 unsigned int error;
148
Jens Axboe1e97cce2006-12-05 11:44:16 +0100149 enum fio_ddir ddir;
Jens Axboeebac4652005-12-08 15:25:21 +0100150
Jens Axboedfd7bc22006-10-24 12:17:57 +0200151 /*
152 * io engine private data
153 */
154 union {
155 unsigned int index;
156 unsigned int seen;
157 };
158
Jens Axboe0c6e7512007-02-22 11:19:39 +0100159 unsigned int flags;
160
Jens Axboe53cdc682006-10-18 11:50:58 +0200161 struct fio_file *file;
162
Jens Axboeebac4652005-12-08 15:25:21 +0100163 struct list_head list;
Jens Axboed7762cf2007-02-23 12:34:57 +0100164
165 /*
166 * Callback for io completion
167 */
Jens Axboe36690c92007-03-26 10:23:34 +0200168 int (*end_io)(struct thread_data *, struct io_u *);
Jens Axboeebac4652005-12-08 15:25:21 +0100169};
170
Jens Axboe36167d82007-02-18 05:41:31 +0100171/*
172 * io_ops->queue() return values
173 */
174enum {
175 FIO_Q_COMPLETED = 0, /* completed sync */
176 FIO_Q_QUEUED = 1, /* queued, will complete async */
Jens Axboe755200a2007-02-19 13:08:12 +0100177 FIO_Q_BUSY = 2, /* no more room, call ->commit() */
Jens Axboe36167d82007-02-18 05:41:31 +0100178};
179
Jens Axboeebac4652005-12-08 15:25:21 +0100180#define FIO_HDR_MAGIC 0xf00baaef
181
182enum {
Jens Axboe1c9e06e2007-02-11 04:07:57 +0100183 VERIFY_NONE = 0, /* no verification */
184 VERIFY_MD5, /* md5 sum data blocks */
185 VERIFY_CRC32, /* crc32 sum data blocks */
Jens Axboe36690c92007-03-26 10:23:34 +0200186 VERIFY_NULL, /* pretend to verify */
Jens Axboeebac4652005-12-08 15:25:21 +0100187};
188
Jens Axboe1c9e06e2007-02-11 04:07:57 +0100189/*
190 * A header structure associated with each checksummed data block
191 */
Jens Axboeebac4652005-12-08 15:25:21 +0100192struct verify_header {
193 unsigned int fio_magic;
194 unsigned int len;
195 unsigned int verify_type;
196 union {
197 char md5_digest[MD5_HASH_WORDS * 4];
198 unsigned long crc32;
199 };
200};
201
202struct group_run_stats {
Jens Axboe9104f872005-12-28 23:50:45 +0100203 unsigned long long max_run[2], min_run[2];
204 unsigned long long max_bw[2], min_bw[2];
Jens Axboee9b2a3f2006-06-06 15:38:33 +0200205 unsigned long long io_kb[2];
Jens Axboe9104f872005-12-28 23:50:45 +0100206 unsigned long long agg[2];
Jens Axboeebac4652005-12-08 15:25:21 +0100207};
208
Jens Axboee9c047a2006-06-07 21:13:04 +0200209/*
210 * What type of allocation to use for io buffers
211 */
212enum fio_memtype {
213 MEM_MALLOC = 0, /* ordinary malloc */
214 MEM_SHM, /* use shared memory segments */
Jens Axboe74b025b2006-12-19 15:18:14 +0100215 MEM_SHMHUGE, /* use shared memory segments with huge pages */
Jens Axboee9c047a2006-06-07 21:13:04 +0200216 MEM_MMAP, /* use anonynomous mmap */
Jens Axboed0bdaf42006-12-20 14:40:44 +0100217 MEM_MMAPHUGE, /* memory mapped huge file */
Jens Axboee9c047a2006-06-07 21:13:04 +0200218};
219
220/*
221 * The type of object we are working on
222 */
223enum fio_filetype {
Jens Axboe1c9e06e2007-02-11 04:07:57 +0100224 FIO_TYPE_FILE = 1, /* plain file */
225 FIO_TYPE_BD, /* block device */
226 FIO_TYPE_CHAR, /* character device */
Jens Axboeb5605e92007-04-16 20:42:33 +0200227 FIO_TYPE_PIPE, /* pipe */
Jens Axboee9c047a2006-06-07 21:13:04 +0200228};
229
Jens Axboe2866c822006-10-09 15:57:48 +0200230enum fio_ioengine_flags {
Jens Axboe1c9e06e2007-02-11 04:07:57 +0100231 FIO_SYNCIO = 1 << 0, /* io engine has synchronous ->queue */
Jens Axboeba0fbe12007-03-09 14:34:23 +0100232 FIO_RAWIO = 1 << 1, /* some sort of direct/raw io */
233 FIO_DISKLESSIO = 1 << 2, /* no disk involved */
Jens Axboe02638822007-03-12 09:25:55 +0100234 FIO_NOEXTEND = 1 << 3, /* engine can't extend file */
Jens Axboe62d984e2007-03-13 08:15:18 +0100235 FIO_NODISKUTIL = 1 << 4, /* diskutil can't handle filename */
Jens Axboee9c047a2006-06-07 21:13:04 +0200236};
237
Jens Axboef11bd942007-03-13 10:16:34 +0100238enum fio_file_flags {
Jens Axboe0ad920e2007-03-13 11:06:45 +0100239 FIO_FILE_OPEN = 1 << 0, /* file is open */
240 FIO_FILE_UNLINK = 1 << 1, /* unlink on close */
241 FIO_FILE_CLOSING = 1 << 2, /* file being closed */
Jens Axboe7bb48f82007-03-27 15:30:28 +0200242 FIO_FILE_EXISTS = 1 << 3, /* file there */
243 FIO_FILE_EXTEND = 1 << 4, /* needs extend */
244 FIO_FILE_NOSORT = 1 << 5, /* don't sort verify blocks */
Jens Axboe059e63c2007-03-27 20:34:47 +0200245 FIO_FILE_DONE = 1 << 6, /* io completed to this file */
Jens Axboe409b3412007-03-28 09:57:01 +0200246 FIO_SIZE_KNOWN = 1 << 7, /* size has been set */
Jens Axboef11bd942007-03-13 10:16:34 +0100247};
248
Jens Axboe1c9e06e2007-02-11 04:07:57 +0100249/*
250 * Each thread_data structure has a number of files associated with it,
251 * this structure holds state information for a single file.
252 */
Jens Axboe53cdc682006-10-18 11:50:58 +0200253struct fio_file {
Jens Axboeaf52b342007-03-13 10:07:47 +0100254 enum fio_filetype filetype;
255
Jens Axboe53cdc682006-10-18 11:50:58 +0200256 /*
257 * A file may not be a file descriptor, let the io engine decide
258 */
259 union {
260 unsigned long file_data;
Jens Axboee26f8f72007-02-17 04:39:54 +0100261 int fd;
Jens Axboe53cdc682006-10-18 11:50:58 +0200262 };
Jens Axboe7bb48f82007-03-27 15:30:28 +0200263
264 /*
265 * filename and possible memory mapping
266 */
Jens Axboe1315a682007-03-13 11:25:07 +0100267 char *file_name;
Jens Axboe53cdc682006-10-18 11:50:58 +0200268 void *mmap;
Jens Axboe7bb48f82007-03-27 15:30:28 +0200269
270 /*
271 * size of the file, offset into file, and io size from that offset
272 */
Jens Axboe53cdc682006-10-18 11:50:58 +0200273 unsigned long long real_file_size;
274 unsigned long long file_offset;
Jens Axboe7bb48f82007-03-27 15:30:28 +0200275 unsigned long long io_size;
276
Jens Axboe53cdc682006-10-18 11:50:58 +0200277 unsigned long long last_pos;
Jens Axboe02bcaa82006-11-24 10:42:00 +0100278 unsigned long long last_completed_pos;
Jens Axboe53cdc682006-10-18 11:50:58 +0200279
Jens Axboe1c9e06e2007-02-11 04:07:57 +0100280 /*
281 * block map for random io
282 */
Jens Axboe53cdc682006-10-18 11:50:58 +0200283 unsigned long *file_map;
284 unsigned int num_maps;
Jens Axboe1c9e06e2007-02-11 04:07:57 +0100285 unsigned int last_free_lookup;
Jens Axboe9b031dc2006-12-15 16:01:54 +0100286
Jens Axboe0ad920e2007-03-13 11:06:45 +0100287 int references;
Jens Axboef11bd942007-03-13 10:16:34 +0100288 enum fio_file_flags flags;
Jens Axboe53cdc682006-10-18 11:50:58 +0200289};
290
Jens Axboeb2560f32007-03-06 12:43:03 +0100291/*
292 * How many depth levels to log
293 */
294#define FIO_IO_U_MAP_NR 8
295#define FIO_IO_U_LAT_NR 12
296
Jens Axboe079ad092007-02-20 13:58:20 +0100297struct thread_stat {
Jens Axboe756867b2007-03-06 15:19:24 +0100298 char *name;
299 char *verror;
300 int error;
301 int groupid;
302 pid_t pid;
303 char *description;
Jens Axboe6586ee82007-03-06 19:46:09 +0100304 int members;
Jens Axboe756867b2007-03-06 15:19:24 +0100305
Jens Axboe079ad092007-02-20 13:58:20 +0100306 struct io_log *slat_log;
307 struct io_log *clat_log;
308 struct io_log *bw_log;
309
310 /*
311 * bandwidth and latency stats
312 */
313 struct io_stat clat_stat[2]; /* completion latency */
314 struct io_stat slat_stat[2]; /* submission latency */
315 struct io_stat bw_stat[2]; /* bandwidth stats */
316
317 unsigned long long stat_io_bytes[2];
318 struct timeval stat_sample_time[2];
319
320 /*
321 * fio system usage accounting
322 */
323 struct rusage ru_start;
324 struct rusage ru_end;
325 unsigned long usr_time;
326 unsigned long sys_time;
327 unsigned long ctx;
Jens Axboe079ad092007-02-20 13:58:20 +0100328
Jens Axboeb2560f32007-03-06 12:43:03 +0100329 /*
330 * IO depth and latency stats
331 */
332 unsigned int io_u_map[FIO_IO_U_MAP_NR];
333 unsigned int io_u_lat[FIO_IO_U_LAT_NR];
Jens Axboeb3605062007-03-12 14:19:47 +0100334 unsigned long total_io_u[2];
Jens Axboe756867b2007-03-06 15:19:24 +0100335
336 unsigned long long io_bytes[2];
337 unsigned long runtime[2];
338 unsigned long total_run_time;
Jens Axboeb2560f32007-03-06 12:43:03 +0100339};
Jens Axboe71619dc2007-01-13 23:56:33 +0100340
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100341struct thread_options {
Jens Axboeb1ec1da2007-02-23 10:29:16 +0100342 int pad;
Jens Axboe61697c32007-02-05 15:04:46 +0100343 char *description;
Jens Axboeb4692822006-10-27 13:43:22 +0200344 char *name;
Jens Axboeef899b62006-06-06 09:31:00 +0200345 char *directory;
Jens Axboe13f8e2d2006-10-24 09:29:45 +0200346 char *filename;
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100347 char *opendir;
Jens Axboe09629a92007-03-09 09:00:06 +0100348 char *ioengine;
Jens Axboe413dd452007-02-23 09:26:09 +0100349 enum td_ddir td_ddir;
Jens Axboe211097b2007-03-22 18:56:45 +0100350 unsigned int ddir_nr;
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100351 unsigned int iodepth;
352 unsigned int iodepth_low;
353 unsigned int iodepth_batch;
354
355 unsigned long long size;
356 unsigned long long file_size_low;
357 unsigned long long file_size_high;
358 unsigned long long start_offset;
359
360 unsigned int bs[2];
361 unsigned int min_bs[2];
362 unsigned int max_bs[2];
363
364 unsigned int nr_files;
365 unsigned int open_files;
Jens Axboee9c047a2006-06-07 21:13:04 +0200366
Jens Axboe9158d2f2006-10-27 14:27:39 +0200367 unsigned int odirect;
368 unsigned int invalidate_cache;
369 unsigned int create_serialize;
370 unsigned int create_fsync;
371 unsigned int end_fsync;
372 unsigned int sync_io;
373 unsigned int verify;
Jens Axboe160b9662007-03-27 10:59:49 +0200374 unsigned int verifysort;
Jens Axboe9158d2f2006-10-27 14:27:39 +0200375 unsigned int use_thread;
376 unsigned int unlink;
377 unsigned int do_disk_util;
378 unsigned int override_sync;
379 unsigned int rand_repeatable;
380 unsigned int write_lat_log;
381 unsigned int write_bw_log;
Jens Axboebb8895e2006-10-30 15:14:48 +0100382 unsigned int norandommap;
Jens Axboe690adba2006-10-30 15:25:09 +0100383 unsigned int bs_unaligned;
Jens Axboeebb14152007-03-13 14:42:15 +0100384 unsigned int fsync_on_close;
Jens Axboee9c047a2006-06-07 21:13:04 +0200385
Jens Axboe56bb17f2006-12-20 20:27:36 +0100386 unsigned int hugepage_size;
Jens Axboea00735e2006-11-03 08:58:08 +0100387 unsigned int rw_min_bs;
Jens Axboeebac4652005-12-08 15:25:21 +0100388 unsigned int thinktime;
Jens Axboe48097d52007-02-17 06:30:44 +0100389 unsigned int thinktime_spin;
Jens Axboe9c1f7432007-01-03 20:43:19 +0100390 unsigned int thinktime_blocks;
Jens Axboeebac4652005-12-08 15:25:21 +0100391 unsigned int fsync_blocks;
392 unsigned int start_delay;
Jens Axboe906c8d72006-06-13 09:37:56 +0200393 unsigned long timeout;
Jens Axboeebac4652005-12-08 15:25:21 +0100394 unsigned int overwrite;
Jens Axboeebac4652005-12-08 15:25:21 +0100395 unsigned int bw_avg_time;
Jens Axboeebac4652005-12-08 15:25:21 +0100396 unsigned int loops;
Jens Axboe20dc95c2005-12-09 10:29:35 +0100397 unsigned long long zone_size;
398 unsigned long long zone_skip;
Jens Axboee9c047a2006-06-07 21:13:04 +0200399 enum fio_memtype mem_type;
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100400
Jens Axboeebac4652005-12-08 15:25:21 +0100401 unsigned int stonewall;
Jens Axboeb3d62a72007-03-20 14:23:26 +0100402 unsigned int new_group;
Jens Axboeebac4652005-12-08 15:25:21 +0100403 unsigned int numjobs;
Jens Axboeebac4652005-12-08 15:25:21 +0100404 os_cpu_mask_t cpumask;
Jens Axboeaea47d42006-05-26 19:27:29 +0200405 unsigned int iolog;
Jens Axboe843a7412006-06-01 21:14:21 -0700406 unsigned int read_iolog;
Jens Axboea6ccc7b2006-06-02 10:14:15 +0200407 unsigned int rwmixcycle;
Jens Axboee47f7992007-03-21 14:05:39 +0100408 unsigned int rwmix[2];
Jens Axboeb6f4d882006-06-02 10:32:51 +0200409 unsigned int nice;
Jens Axboe0aabe162007-02-23 08:45:55 +0100410 unsigned int file_service_type;
Jens Axboeb2560f32007-03-06 12:43:03 +0100411 unsigned int group_reporting;
Jens Axboed2f3ac32007-03-22 19:24:09 +0100412 unsigned int fadvise_hint;
Jens Axboeaea47d42006-05-26 19:27:29 +0200413
Jens Axboe076efc72006-10-27 11:24:25 +0200414 char *read_iolog_file;
415 char *write_iolog_file;
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100416
417 /*
418 * Pre-run and post-run shell
419 */
420 char *exec_prerun;
421 char *exec_postrun;
422
423 unsigned int rate;
424 unsigned int ratemin;
425 unsigned int ratecycle;
426 unsigned int rate_iops;
427 unsigned int rate_iops_min;
428
429 char *ioscheduler;
430
431 /*
432 * CPU "io" cycle burner
433 */
434 unsigned int cpuload;
435 unsigned int cpucycle;
436};
437
Jens Axboee4e33252007-03-21 13:07:54 +0100438#define FIO_VERROR_SIZE 128
439
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100440/*
441 * This describes a single thread/process executing a fio job.
442 */
443struct thread_data {
444 struct thread_options o;
Jens Axboee4e33252007-03-21 13:07:54 +0100445 char verror[FIO_VERROR_SIZE];
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100446 pthread_t thread;
447 int thread_number;
448 int groupid;
449 struct thread_stat ts;
450 struct fio_file *files;
451 unsigned int files_index;
452 unsigned int nr_open_files;
Jens Axboe1020a132007-03-29 11:15:06 +0200453 unsigned int nr_done_files;
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100454 unsigned int nr_normal_files;
455 union {
456 unsigned int next_file;
457 os_random_state_t next_file_state;
458 };
459 int error;
460 pid_t pid;
461 char *orig_buffer;
462 size_t orig_buffer_size;
463 volatile int terminate;
464 volatile int runstate;
465 unsigned int ioprio;
466 unsigned int last_was_sync;
467
468 char *mmapfile;
469 int mmapfd;
470
Jens Axboe843a7412006-06-01 21:14:21 -0700471 void *iolog_buf;
472 FILE *iolog_f;
Jens Axboeebac4652005-12-08 15:25:21 +0100473
Jens Axboeda867742006-06-06 10:39:10 -0700474 char *sysfs_root;
Jens Axboeda867742006-06-06 10:39:10 -0700475
Jens Axboe6dfd46b2006-06-07 13:57:06 +0200476 os_random_state_t bsrange_state;
477 os_random_state_t verify_state;
Jens Axboeebac4652005-12-08 15:25:21 +0100478
479 int shm_id;
480
Jens Axboee9c047a2006-06-07 21:13:04 +0200481 /*
482 * IO engine hooks, contains everything needed to submit an io_u
483 * to any of the available IO engines.
484 */
Jens Axboe2866c822006-10-09 15:57:48 +0200485 struct ioengine_ops *io_ops;
Jens Axboeebac4652005-12-08 15:25:21 +0100486
Jens Axboee9c047a2006-06-07 21:13:04 +0200487 /*
488 * Current IO depth and list of free and busy io_u's.
489 */
Jens Axboeebac4652005-12-08 15:25:21 +0100490 unsigned int cur_depth;
491 struct list_head io_u_freelist;
492 struct list_head io_u_busylist;
Jens Axboe755200a2007-02-19 13:08:12 +0100493 struct list_head io_u_requeues;
Jens Axboecb5ab512007-02-26 12:57:09 +0100494 unsigned int io_u_queued;
Jens Axboeebac4652005-12-08 15:25:21 +0100495
Jens Axboee9c047a2006-06-07 21:13:04 +0200496 /*
497 * Rate state
498 */
Jens Axboeebac4652005-12-08 15:25:21 +0100499 unsigned long rate_usec_cycle;
500 long rate_pending_usleep;
501 unsigned long rate_bytes;
Jens Axboe4e991c22007-03-15 11:41:11 +0100502 unsigned long rate_blocks;
Jens Axboeebac4652005-12-08 15:25:21 +0100503 struct timeval lastrate;
504
Jens Axboeebac4652005-12-08 15:25:21 +0100505 unsigned long long total_io_size;
506
Jens Axboe755200a2007-02-19 13:08:12 +0100507 unsigned long io_issues[2];
Jens Axboe9104f872005-12-28 23:50:45 +0100508 unsigned long long io_blocks[2];
509 unsigned long long io_bytes[2];
Jens Axboe9104f872005-12-28 23:50:45 +0100510 unsigned long long this_io_bytes[2];
Jens Axboe079ad092007-02-20 13:58:20 +0100511 unsigned long long zone_bytes;
Jens Axboe07739b52007-03-08 20:25:46 +0100512 struct fio_sem *mutex;
Jens Axboeebac4652005-12-08 15:25:21 +0100513
Jens Axboee9c047a2006-06-07 21:13:04 +0200514 /*
515 * State for random io, a bitmap of blocks done vs not done
516 */
Jens Axboe6dfd46b2006-06-07 13:57:06 +0200517 os_random_state_t random_state;
Jens Axboeebac4652005-12-08 15:25:21 +0100518
Jens Axboeebac4652005-12-08 15:25:21 +0100519 struct timeval start; /* start of this loop */
520 struct timeval epoch; /* time job was started */
Jens Axboe38d77ca2007-03-21 14:20:20 +0100521 struct timeval rw_end[2];
522 unsigned int rw_end_set[2];
Jens Axboeebac4652005-12-08 15:25:21 +0100523
Jens Axboee9c047a2006-06-07 21:13:04 +0200524 /*
Jens Axboee9c047a2006-06-07 21:13:04 +0200525 * read/write mixed workload state
526 */
Jens Axboe6dfd46b2006-06-07 13:57:06 +0200527 os_random_state_t rwmix_state;
Jens Axboeafe24a52007-03-16 20:27:27 +0100528 unsigned long long rwmix_bytes;
Jens Axboea6ccc7b2006-06-02 10:14:15 +0200529 struct timeval rwmix_switch;
Jens Axboee9c047a2006-06-07 21:13:04 +0200530 enum fio_ddir rwmix_ddir;
Jens Axboe211097b2007-03-22 18:56:45 +0100531 unsigned int ddir_nr;
Jens Axboea6ccc7b2006-06-02 10:14:15 +0200532
Jens Axboe4e0ba8a2006-06-06 09:36:28 +0200533 /*
Jens Axboe8de8f042007-03-27 10:36:12 +0200534 * IO history logs for verification. We use a tree for sorting,
535 * if we are overwriting. Otherwise just use a fifo.
Jens Axboee9c047a2006-06-07 21:13:04 +0200536 */
Jens Axboe4b878982007-03-26 09:32:22 +0200537 struct rb_root io_hist_tree;
Jens Axboe8de8f042007-03-27 10:36:12 +0200538 struct list_head io_hist_list;
539
540 /*
541 * For IO replaying
542 */
Jens Axboeaea47d42006-05-26 19:27:29 +0200543 struct list_head io_log_list;
Jens Axboe433afcb2007-02-22 10:39:01 +0100544
545 /*
546 * timeout handling
547 */
548 struct timeval timeout_end;
549 struct itimerval timer;
Jens Axboe1907dbc2007-03-12 11:44:28 +0100550
551 /*
552 * for fileservice, how often to switch to a new file
553 */
554 unsigned int file_service_nr;
555 unsigned int file_service_left;
556 struct fio_file *file_service_file;
Jens Axboe9c60ce62007-03-15 09:14:47 +0100557
558 /*
559 * For generating file sizes
560 */
561 os_random_state_t file_size_state;
Jens Axboeebac4652005-12-08 15:25:21 +0100562};
563
Jens Axboe433afcb2007-02-22 10:39:01 +0100564/*
Jens Axboe0aabe162007-02-23 08:45:55 +0100565 * roundrobin available files, or choose one at random.
566 */
567enum {
568 FIO_FSERVICE_RANDOM = 1,
569 FIO_FSERVICE_RR = 2,
570};
571
572/*
Jens Axboe433afcb2007-02-22 10:39:01 +0100573 * 30 second per-io_u timeout, with 5 second intervals to avoid resetting
574 * the timer on each queue operation.
575 */
576#define IO_U_TIMEOUT_INC 5
577#define IO_U_TIMEOUT 30
578
Jens Axboee1161c32007-02-22 19:36:48 +0100579#define __td_verror(td, err, msg, func) \
Jens Axboeebac4652005-12-08 15:25:21 +0100580 do { \
Jens Axboe19abcd32007-02-21 20:14:33 +0100581 if ((td)->error) \
582 break; \
Jens Axboeebac4652005-12-08 15:25:21 +0100583 int e = (err); \
584 (td)->error = e; \
Jens Axboee1161c32007-02-22 19:36:48 +0100585 snprintf(td->verror, sizeof(td->verror) - 1, "file:%s:%d, func=%s, error=%s", __FILE__, __LINE__, (func), (msg)); \
Jens Axboeebac4652005-12-08 15:25:21 +0100586 } while (0)
587
Jens Axboeb990b5c2006-09-14 09:48:22 +0200588
Jens Axboee1161c32007-02-22 19:36:48 +0100589#define td_verror(td, err, func) \
590 __td_verror((td), (err), strerror((err)), (func))
591#define td_vmsg(td, err, msg, func) \
592 __td_verror((td), (err), (msg), (func))
Jens Axboeb990b5c2006-09-14 09:48:22 +0200593
Jens Axboeebac4652005-12-08 15:25:21 +0100594extern int exitall_on_terminate;
595extern int thread_number;
Jens Axboe9cedf162007-03-12 11:29:30 +0100596extern int nr_process, nr_thread;
Jens Axboeebac4652005-12-08 15:25:21 +0100597extern int shm_id;
598extern int groupid;
Jens Axboec6ae0a52006-06-12 11:04:44 +0200599extern int terse_output;
Jens Axboeeb8bbf42006-06-08 21:40:11 +0200600extern FILE *f_out;
601extern FILE *f_err;
Jens Axboe53cdc682006-10-18 11:50:58 +0200602extern int temp_stall_ts;
Jens Axboe1e97cce2006-12-05 11:44:16 +0100603extern unsigned long long mlock_size;
Jens Axboecfc99db2007-03-14 10:34:47 +0100604extern unsigned long page_mask, page_size;
Jens Axboeebac4652005-12-08 15:25:21 +0100605
606extern struct thread_data *threads;
607
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100608#define td_read(td) ((td)->o.td_ddir & TD_DDIR_READ)
609#define td_write(td) ((td)->o.td_ddir & TD_DDIR_WRITE)
610#define td_rw(td) (((td)->o.td_ddir & TD_DDIR_RW) == TD_DDIR_RW)
611#define td_random(td) ((td)->o.td_ddir & TD_DDIR_RAND)
Jens Axboeebac4652005-12-08 15:25:21 +0100612
613#define BLOCKS_PER_MAP (8 * sizeof(long))
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100614#define TO_MAP_BLOCK(td, f, b) ((b) - ((f)->file_offset / (td)->o.rw_min_bs))
Jens Axboe53cdc682006-10-18 11:50:58 +0200615#define RAND_MAP_IDX(td, f, b) (TO_MAP_BLOCK(td, f, b) / BLOCKS_PER_MAP)
616#define RAND_MAP_BIT(td, f, b) (TO_MAP_BLOCK(td, f, b) & (BLOCKS_PER_MAP - 1))
Jens Axboeebac4652005-12-08 15:25:21 +0100617
618#define MAX_JOBS (1024)
619
Jens Axboe87dc1ab2006-10-24 14:41:26 +0200620static inline int should_fsync(struct thread_data *td)
621{
622 if (td->last_was_sync)
623 return 0;
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100624 if (td->o.odirect)
Jens Axboe87dc1ab2006-10-24 14:41:26 +0200625 return 0;
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100626 if (td_write(td) || td_rw(td) || td->o.override_sync)
Jens Axboe87dc1ab2006-10-24 14:41:26 +0200627 return 1;
628
629 return 0;
630}
631
Jens Axboe1c9e06e2007-02-11 04:07:57 +0100632/*
633 * Disk utils as read in /sys/block/<dev>/stat
634 */
Jens Axboeebac4652005-12-08 15:25:21 +0100635struct disk_util_stat {
636 unsigned ios[2];
637 unsigned merges[2];
638 unsigned long long sectors[2];
639 unsigned ticks[2];
640 unsigned io_ticks;
641 unsigned time_in_queue;
642};
643
Jens Axboe1c9e06e2007-02-11 04:07:57 +0100644/*
645 * Per-device disk util management
646 */
Jens Axboeebac4652005-12-08 15:25:21 +0100647struct disk_util {
648 struct list_head list;
649
650 char *name;
Jens Axboee11c4102007-04-03 16:33:04 -0700651 char *sysfs_root;
Jens Axboeebac4652005-12-08 15:25:21 +0100652 char path[256];
Jens Axboe07e5b262007-04-02 14:46:07 +0200653 int major, minor;
Jens Axboeebac4652005-12-08 15:25:21 +0100654
655 struct disk_util_stat dus;
656 struct disk_util_stat last_dus;
657
658 unsigned long msec;
659 struct timeval time;
660};
661
Jens Axboeebac4652005-12-08 15:25:21 +0100662#define DISK_UTIL_MSEC (250)
663
Jens Axboe6a0106a2006-05-05 10:34:43 +0200664#ifndef min
665#define min(a, b) ((a) < (b) ? (a) : (b))
666#endif
Jens Axboea00735e2006-11-03 08:58:08 +0100667#ifndef max
668#define max(a, b) ((a) > (b) ? (a) : (b))
669#endif
Jens Axboe6a0106a2006-05-05 10:34:43 +0200670
Jens Axboe67962092006-06-07 08:45:01 +0200671/*
672 * Log exports
673 */
Jens Axboe72cb9712007-02-20 20:54:45 +0100674extern int __must_check read_iolog_get(struct thread_data *, struct io_u *);
Jens Axboe67962092006-06-07 08:45:01 +0200675extern void write_iolog_put(struct thread_data *, struct io_u *);
Jens Axboe72cb9712007-02-20 20:54:45 +0100676extern int __must_check init_iolog(struct thread_data *td);
Jens Axboe67962092006-06-07 08:45:01 +0200677extern void log_io_piece(struct thread_data *, struct io_u *);
678extern void prune_io_piece_log(struct thread_data *);
679extern void write_iolog_close(struct thread_data *);
680
681/*
682 * Logging
683 */
Jens Axboe1e97cce2006-12-05 11:44:16 +0100684extern void add_clat_sample(struct thread_data *, enum fio_ddir, unsigned long);
685extern void add_slat_sample(struct thread_data *, enum fio_ddir, unsigned long);
686extern void add_bw_sample(struct thread_data *, enum fio_ddir, struct timeval *);
Jens Axboe67962092006-06-07 08:45:01 +0200687extern void show_run_stats(void);
688extern void init_disk_util(struct thread_data *);
689extern void update_rusage_stat(struct thread_data *);
690extern void update_io_ticks(void);
691extern void disk_util_timer_arm(void);
Jens Axboe8914a9d2006-06-07 11:14:56 +0200692extern void setup_log(struct io_log **);
693extern void finish_log(struct thread_data *, struct io_log *, const char *);
Jens Axboebb3884d2007-01-17 17:23:11 +1100694extern void __finish_log(struct io_log *, const char *);
Jens Axboebb3884d2007-01-17 17:23:11 +1100695extern struct io_log *agg_io_log[2];
696extern int write_bw_log;
697extern void add_agg_sample(unsigned long, enum fio_ddir);
Jens Axboe67962092006-06-07 08:45:01 +0200698
699/*
700 * Time functions
701 */
702extern unsigned long utime_since(struct timeval *, struct timeval *);
Jens Axboe69008992006-11-24 13:12:56 +0100703extern unsigned long utime_since_now(struct timeval *);
Jens Axboe67962092006-06-07 08:45:01 +0200704extern unsigned long mtime_since(struct timeval *, struct timeval *);
705extern unsigned long mtime_since_now(struct timeval *);
706extern unsigned long time_since_now(struct timeval *);
Jens Axboe263e5292006-10-18 15:37:01 +0200707extern unsigned long mtime_since_genesis(void);
Jens Axboeb990b5c2006-09-14 09:48:22 +0200708extern void __usec_sleep(unsigned int);
Jens Axboe67962092006-06-07 08:45:01 +0200709extern void usec_sleep(struct thread_data *, unsigned long);
Jens Axboe413dd452007-02-23 09:26:09 +0100710extern void rate_throttle(struct thread_data *, unsigned long, unsigned int);
Jens Axboe6043c572006-11-03 11:37:47 +0100711extern void fill_start_time(struct timeval *);
Jens Axboe02bcaa82006-11-24 10:42:00 +0100712extern void fio_gettime(struct timeval *, void *);
Jens Axboea2f77c92007-02-22 11:53:00 +0100713extern void set_genesis_time(void);
Jens Axboe67962092006-06-07 08:45:01 +0200714
Jens Axboe8914a9d2006-06-07 11:14:56 +0200715/*
Jens Axboe214e1ec2007-03-15 10:48:13 +0100716 * Init/option functions
Jens Axboe8914a9d2006-06-07 11:14:56 +0200717 */
Jens Axboe72cb9712007-02-20 20:54:45 +0100718extern int __must_check parse_options(int, char **);
Jens Axboe214e1ec2007-03-15 10:48:13 +0100719extern int fio_option_parse(struct thread_data *, const char *);
720extern int fio_cmd_option_parse(struct thread_data *, const char *, char *);
721extern void fio_fill_default_options(struct thread_data *);
722extern int fio_show_option_help(const char *);
723extern void fio_options_dup_and_init(struct option *);
Jens Axboed23bb322007-03-23 15:57:56 +0100724extern void options_mem_dupe(struct thread_data *);
725extern void options_mem_free(struct thread_data *);
Jens Axboe214e1ec2007-03-15 10:48:13 +0100726#define FIO_GETOPT_JOB 0x89988998
727#define FIO_NR_OPTIONS 128
Jens Axboe8914a9d2006-06-07 11:14:56 +0200728
Jens Axboebbfd6b02006-06-07 19:42:54 +0200729/*
Jens Axboe53cdc682006-10-18 11:50:58 +0200730 * File setup/shutdown
731 */
732extern void close_files(struct thread_data *);
Jens Axboeb2fdda42007-02-20 20:52:51 +0100733extern int __must_check setup_files(struct thread_data *);
734extern int __must_check open_files(struct thread_data *);
735extern int __must_check file_invalidate_cache(struct thread_data *, struct fio_file *);
Jens Axboeb5af8292007-03-08 12:43:13 +0100736extern int __must_check generic_open_file(struct thread_data *, struct fio_file *);
737extern void generic_close_file(struct thread_data *, struct fio_file *);
Jens Axboeaf52b342007-03-13 10:07:47 +0100738extern void add_file(struct thread_data *, const char *);
Jens Axboe0ad920e2007-03-13 11:06:45 +0100739extern void get_file(struct fio_file *);
740extern void put_file(struct thread_data *, struct fio_file *);
Jens Axboebbf6b542007-03-13 15:28:55 +0100741extern int add_dir_files(struct thread_data *, const char *);
Jens Axboe68727072007-03-15 20:49:25 +0100742extern int init_random_map(struct thread_data *);
Jens Axboecade3ef2007-03-23 15:29:45 +0100743extern void dup_files(struct thread_data *, struct thread_data *);
Jens Axboe53cdc682006-10-18 11:50:58 +0200744
745/*
Jens Axboe263e5292006-10-18 15:37:01 +0200746 * ETA/status stuff
747 */
748extern void print_thread_status(void);
749extern void print_status_init(int);
750
751/*
Jens Axboe9f8f2062007-04-02 15:08:01 +0200752 * disk util stuff
753 */
754#ifdef FIO_HAVE_DISK_UTIL
755extern void show_disk_util(void);
756extern void disk_util_timer_arm(void);
757extern void init_disk_util(struct thread_data *);
758extern void update_io_ticks(void);
759#else
760#define show_disk_util()
761#define disk_util_timer_arm()
762#define init_disk_util(td)
763#define update_io_ticks()
764#endif
765
766/*
Jens Axboe263e5292006-10-18 15:37:01 +0200767 * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it
768 * will never back again. It may cycle between running/verififying/fsyncing.
769 * Once the thread reaches TD_EXITED, it is just waiting for the core to
770 * reap it.
771 */
772enum {
773 TD_NOT_CREATED = 0,
774 TD_CREATED,
775 TD_INITIALIZED,
776 TD_RUNNING,
777 TD_VERIFYING,
778 TD_FSYNCING,
779 TD_EXITED,
780 TD_REAPED,
781};
782
783/*
Jens Axboee29d1b72006-10-18 15:43:15 +0200784 * Verify helpers
785 */
786extern void populate_verify_io_u(struct thread_data *, struct io_u *);
Jens Axboeb2fdda42007-02-20 20:52:51 +0100787extern int __must_check get_next_verify(struct thread_data *td, struct io_u *);
Jens Axboe36690c92007-03-26 10:23:34 +0200788extern int __must_check verify_io_u(struct thread_data *, struct io_u *);
Jens Axboee29d1b72006-10-18 15:43:15 +0200789
790/*
Jens Axboe2f9ade32006-10-20 11:25:52 +0200791 * Memory helpers
792 */
Jens Axboeb2fdda42007-02-20 20:52:51 +0100793extern int __must_check fio_pin_memory(void);
Jens Axboe2f9ade32006-10-20 11:25:52 +0200794extern void fio_unpin_memory(void);
Jens Axboeb2fdda42007-02-20 20:52:51 +0100795extern int __must_check allocate_io_mem(struct thread_data *);
Jens Axboe2f9ade32006-10-20 11:25:52 +0200796extern void free_io_mem(struct thread_data *);
797
798/*
Jens Axboe10ba5352006-10-20 11:39:27 +0200799 * io unit handling
800 */
801#define queue_full(td) list_empty(&(td)->io_u_freelist)
802extern struct io_u *__get_io_u(struct thread_data *);
Jens Axboe3d7c3912007-02-19 13:16:12 +0100803extern struct io_u *get_io_u(struct thread_data *);
Jens Axboe10ba5352006-10-20 11:39:27 +0200804extern void put_io_u(struct thread_data *, struct io_u *);
Jens Axboe755200a2007-02-19 13:08:12 +0100805extern void requeue_io_u(struct thread_data *, struct io_u **);
Jens Axboed7762cf2007-02-23 12:34:57 +0100806extern long __must_check io_u_sync_complete(struct thread_data *, struct io_u *);
807extern long __must_check io_u_queued_complete(struct thread_data *, int);
Jens Axboe7e77dd02007-02-20 10:57:34 +0100808extern void io_u_queued(struct thread_data *, struct io_u *);
Jens Axboe54517922007-03-05 10:06:06 +0100809extern void io_u_log_error(struct thread_data *, struct io_u *);
Jens Axboe433afcb2007-02-22 10:39:01 +0100810extern void io_u_init_timeout(void);
811extern void io_u_set_timeout(struct thread_data *);
Jens Axboeb3605062007-03-12 14:19:47 +0100812extern void io_u_mark_depth(struct thread_data *, struct io_u *);
Jens Axboe10ba5352006-10-20 11:39:27 +0200813
814/*
815 * io engine entry points
816 */
Jens Axboeb2fdda42007-02-20 20:52:51 +0100817extern int __must_check td_io_init(struct thread_data *);
818extern int __must_check td_io_prep(struct thread_data *, struct io_u *);
819extern int __must_check td_io_queue(struct thread_data *, struct io_u *);
820extern int __must_check td_io_sync(struct thread_data *, struct fio_file *);
821extern int __must_check td_io_getevents(struct thread_data *, int, int, struct timespec *);
822extern int __must_check td_io_commit(struct thread_data *);
Jens Axboeb5af8292007-03-08 12:43:13 +0100823extern int __must_check td_io_open_file(struct thread_data *, struct fio_file *);
824extern void td_io_close_file(struct thread_data *, struct fio_file *);
Jens Axboe10ba5352006-10-20 11:39:27 +0200825
826/*
Jens Axboe3b70d7e2006-06-08 21:48:46 +0200827 * If logging output to a file, stderr should go to both stderr and f_err
828 */
829#define log_err(args...) do { \
830 fprintf(f_err, ##args); \
831 if (f_err != stderr) \
832 fprintf(stderr, ##args); \
833 } while (0)
834
Jens Axboe9c60ce62007-03-15 09:14:47 +0100835#define log_info(args...) fprintf(f_out, ##args)
836
Joel Becker9728ce32007-03-01 08:24:39 +0100837FILE *get_f_out(void);
838FILE *get_f_err(void);
839
Jens Axboe2866c822006-10-09 15:57:48 +0200840struct ioengine_ops {
Jens Axboe5f350952006-11-07 15:20:59 +0100841 struct list_head list;
Jens Axboe2866c822006-10-09 15:57:48 +0200842 char name[16];
843 int version;
844 int flags;
Jens Axboeea2877a2006-10-10 08:30:24 +0200845 int (*setup)(struct thread_data *);
Jens Axboe2866c822006-10-09 15:57:48 +0200846 int (*init)(struct thread_data *);
847 int (*prep)(struct thread_data *, struct io_u *);
848 int (*queue)(struct thread_data *, struct io_u *);
Jens Axboe755200a2007-02-19 13:08:12 +0100849 int (*commit)(struct thread_data *);
Jens Axboe2866c822006-10-09 15:57:48 +0200850 int (*getevents)(struct thread_data *, int, int, struct timespec *);
851 struct io_u *(*event)(struct thread_data *, int);
852 int (*cancel)(struct thread_data *, struct io_u *);
853 void (*cleanup)(struct thread_data *);
Jens Axboeb5af8292007-03-08 12:43:13 +0100854 int (*open_file)(struct thread_data *, struct fio_file *);
855 void (*close_file)(struct thread_data *, struct fio_file *);
Jens Axboe2866c822006-10-09 15:57:48 +0200856 void *data;
857 void *dlhandle;
858};
859
Jens Axboe2c187c02007-03-27 15:57:19 +0200860#define FIO_IOOPS_VERSION 7
Jens Axboe2866c822006-10-09 15:57:48 +0200861
Jens Axboeb4692822006-10-27 13:43:22 +0200862extern struct ioengine_ops *load_ioengine(struct thread_data *, const char *);
Jens Axboeb2fdda42007-02-20 20:52:51 +0100863extern void register_ioengine(struct ioengine_ops *);
Jens Axboe5f350952006-11-07 15:20:59 +0100864extern void unregister_ioengine(struct ioengine_ops *);
Jens Axboe2866c822006-10-09 15:57:48 +0200865extern void close_ioengine(struct thread_data *);
866
867/*
868 * Mark unused variables passed to ops functions as unused, to silence gcc
869 */
870#define fio_unused __attribute((__unused__))
Jens Axboe5f350952006-11-07 15:20:59 +0100871#define fio_init __attribute__((constructor))
872#define fio_exit __attribute__((destructor))
Jens Axboe2866c822006-10-09 15:57:48 +0200873
Jens Axboe34572e22006-10-20 09:33:18 +0200874#define for_each_td(td, i) \
875 for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++)
Jens Axboe53cdc682006-10-18 11:50:58 +0200876#define for_each_file(td, f, i) \
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100877 for ((i) = 0, (f) = &(td)->files[0]; (i) < (td)->o.nr_files; (i)++, (f)++)
Jens Axboe53cdc682006-10-18 11:50:58 +0200878
Jens Axboe0032bf92007-02-13 17:39:56 +0100879#define fio_assert(td, cond) do { \
880 if (!(cond)) { \
Jens Axboe340fd242007-02-13 20:09:10 +0100881 int *__foo = NULL; \
Jens Axboe0032bf92007-02-13 17:39:56 +0100882 fprintf(stderr, "file:%s:%d, assert %s failed\n", __FILE__, __LINE__, #cond); \
883 (td)->runstate = TD_EXITED; \
Jens Axboe437c9b72007-02-13 18:20:37 +0100884 (td)->error = EFAULT; \
Jens Axboe340fd242007-02-13 20:09:10 +0100885 *__foo = 0; \
Jens Axboe0032bf92007-02-13 17:39:56 +0100886 } \
887} while (0)
888
Jens Axboe9bf27b42007-03-27 19:49:31 +0200889static inline void clear_error(struct thread_data *td)
890{
891 td->error = 0;
892 td->verror[0] = '\0';
893}
894
Jens Axboeebac4652005-12-08 15:25:21 +0100895#endif