Use unique seed for zipf/pareto init if rand_repeat is not set
[fio.git] / os / os.h
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1#ifndef FIO_OS_H
2#define FIO_OS_H
3
a14ca44a 4#include <sys/types.h>
203913ea 5#include <sys/socket.h>
93bcfd20 6#include <fcntl.h>
03e20d68 7#include <pthread.h>
a14ca44a 8#include <unistd.h>
ecc314ba 9#include <stdlib.h>
a14ca44a 10
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11enum {
12 os_linux = 1,
13 os_aix,
14 os_freebsd,
15 os_hpux,
16 os_mac,
17 os_netbsd,
18 os_solaris,
19 os_windows,
20
21 os_nr,
22};
23
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24#if defined(__linux__)
25#include "os-linux.h"
26#elif defined(__FreeBSD__)
27#include "os-freebsd.h"
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28#elif defined(__NetBSD__)
29#include "os-netbsd.h"
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30#elif defined(__sun__)
31#include "os-solaris.h"
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32#elif defined(__APPLE__)
33#include "os-mac.h"
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34#elif defined(_AIX)
35#include "os-aix.h"
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36#elif defined(__hpux)
37#include "os-hpux.h"
93bcfd20 38#elif defined(WIN32)
03e20d68 39#include "os-windows.h"
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40#else
41#error "unsupported os"
42#endif
43
44#ifdef FIO_HAVE_LIBAIO
45#include <libaio.h>
46#endif
47
48#ifdef FIO_HAVE_POSIXAIO
49#include <aio.h>
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50#ifndef FIO_OS_HAVE_AIOCB_TYPEDEF
51typedef struct aiocb os_aiocb_t;
52#endif
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53#endif
54
55#ifdef FIO_HAVE_SGIO
56#include <linux/fs.h>
57#include <scsi/sg.h>
58#endif
59
5921e80c 60#ifndef FIO_HAVE_STRSEP
00fb3c8d 61#include "../lib/strsep.h"
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62#endif
63
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64#ifdef MSG_DONTWAIT
65#define OS_MSG_DONTWAIT MSG_DONTWAIT
66#endif
67
ebac4655 68#ifndef FIO_HAVE_FADVISE
ecc314ba 69#define posix_fadvise(fd, off, len, advice) (0)
ebac4655 70
4d8947de 71#ifndef POSIX_FADV_DONTNEED
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72#define POSIX_FADV_DONTNEED (0)
73#define POSIX_FADV_SEQUENTIAL (0)
74#define POSIX_FADV_RANDOM (0)
4d8947de 75#endif
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76#endif /* FIO_HAVE_FADVISE */
77
78#ifndef FIO_HAVE_CPU_AFFINITY
e8462bd8 79#define fio_setaffinity(pid, mask) (0)
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80#define fio_getaffinity(pid, mask) do { } while (0)
81#define fio_cpu_clear(mask, cpu) do { } while (0)
85daf2c1 82#define fio_cpuset_exit(mask) (-1)
7452440e 83typedef unsigned long os_cpu_mask_t;
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84#endif
85
86#ifndef FIO_HAVE_IOPRIO
87#define ioprio_set(which, who, prio) (0)
88#endif
89
2c0ecd28 90#ifndef FIO_HAVE_ODIRECT
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91#define OS_O_DIRECT 0
92#else
93#define OS_O_DIRECT O_DIRECT
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94#endif
95
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96#ifndef FIO_HAVE_HUGETLB
97#define SHM_HUGETLB 0
4d8947de 98#ifndef FIO_HUGE_PAGE
74b025b0 99#define FIO_HUGE_PAGE 0
4d8947de 100#endif
74b025b0 101#else
cb25df61 102#ifndef FIO_HUGE_PAGE
ee0e0a71 103#define FIO_HUGE_PAGE 4194304
74b025b0 104#endif
cb25df61 105#endif
74b025b0 106
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107#ifndef FIO_O_NOATIME
108#define FIO_O_NOATIME 0
109#endif
110
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111#ifndef OS_RAND_MAX
112#define OS_RAND_MAX RAND_MAX
113#endif
114
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115#ifdef FIO_HAVE_CLOCK_MONOTONIC
116#define FIO_TIMER_CLOCK CLOCK_MONOTONIC
117#else
118#define FIO_TIMER_CLOCK CLOCK_REALTIME
119#endif
120
07e5b264 121#ifndef FIO_HAVE_RAWBIND
8cc7afa9 122#define fio_lookup_raw(dev, majdev, mindev) 1
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123#endif
124
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125#ifndef FIO_PREFERRED_ENGINE
126#define FIO_PREFERRED_ENGINE "sync"
127#endif
128
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129#ifndef FIO_OS_PATH_SEPARATOR
130#define FIO_OS_PATH_SEPARATOR "/"
131#endif
132
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133#ifndef FIO_PREFERRED_CLOCK_SOURCE
134#define FIO_PREFERRED_CLOCK_SOURCE CS_CGETTIME
135#endif
136
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137#ifndef FIO_MAX_JOBS
138#define FIO_MAX_JOBS 2048
139#endif
140
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141#ifndef FIO_OS_HAVE_SOCKLEN_T
142typedef socklen_t fio_socklen_t;
143#endif
144
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145#ifndef FIO_OS_HAS_CTIME_R
146#define os_ctime_r(x, y, z) ctime_r((x), (y))
147#endif
148
901ebe18 149#ifdef FIO_USE_GENERIC_SWAP
9677bec3 150static inline uint16_t fio_swap16(uint16_t val)
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151{
152 return (val << 8) | (val >> 8);
153}
154
901ebe18 155static inline uint32_t fio_swap32(uint32_t val)
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156{
157 val = ((val & 0xff00ff00UL) >> 8) | ((val & 0x00ff00ffUL) << 8);
158
159 return (val >> 16) | (val << 16);
160}
161
901ebe18 162static inline uint64_t fio_swap64(uint64_t val)
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163{
164 val = ((val & 0xff00ff00ff00ff00ULL) >> 8) |
165 ((val & 0x00ff00ff00ff00ffULL) << 8);
166 val = ((val & 0xffff0000ffff0000ULL) >> 16) |
167 ((val & 0x0000ffff0000ffffULL) << 16);
168
169 return (val >> 32) | (val << 32);
170}
171#endif
172
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173#ifdef FIO_LITTLE_ENDIAN
174#define __le16_to_cpu(x) (x)
175#define __le32_to_cpu(x) (x)
176#define __le64_to_cpu(x) (x)
177#define __cpu_to_le16(x) (x)
178#define __cpu_to_le32(x) (x)
179#define __cpu_to_le64(x) (x)
180#else
181#define __le16_to_cpu(x) fio_swap16(x)
182#define __le32_to_cpu(x) fio_swap32(x)
183#define __le64_to_cpu(x) fio_swap64(x)
184#define __cpu_to_le16(x) fio_swap16(x)
185#define __cpu_to_le32(x) fio_swap32(x)
186#define __cpu_to_le64(x) fio_swap64(x)
187#endif
188
189#define le16_to_cpu(val) ({ \
190 uint16_t *__val = &(val); \
191 __le16_to_cpu(*__val); \
192})
193#define le32_to_cpu(val) ({ \
194 uint32_t *__val = &(val); \
195 __le32_to_cpu(*__val); \
196})
197#define le64_to_cpu(val) ({ \
198 uint64_t *__val = &(val); \
199 __le64_to_cpu(*__val); \
200})
201#define cpu_to_le16(val) ({ \
202 uint16_t *__val = &(val); \
203 __cpu_to_le16(*__val); \
204})
205#define cpu_to_le32(val) ({ \
206 uint32_t *__val = &(val); \
207 __cpu_to_le32(*__val); \
208})
209#define cpu_to_le64(val) ({ \
210 uint64_t *__val = &(val); \
211 __cpu_to_le64(*__val); \
212})
213
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214#ifndef FIO_HAVE_BLKTRACE
215static inline int is_blktrace(const char *fname)
216{
217 return 0;
218}
5921e80c 219struct thread_data;
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220static inline int load_blktrace(struct thread_data *td, const char *fname)
221{
222 return 1;
223}
224#endif
225
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226#define FIO_DEF_CL_SIZE 128
227
228static inline int os_cache_line_size(void)
229{
230#ifdef FIO_HAVE_CL_SIZE
231 int ret = arch_cache_line_size();
232
233 if (ret <= 0)
234 return FIO_DEF_CL_SIZE;
235
236 return ret;
237#else
238 return FIO_DEF_CL_SIZE;
239#endif
240}
241
792d5517 242#ifdef FIO_USE_GENERIC_BDEV_SIZE
ecc314ba 243static inline int blockdev_size(struct fio_file *f, unsigned long long *bytes)
792d5517 244{
3b2e1464 245 off_t end;
792d5517 246
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247 *bytes = 0;
248
ecc314ba 249 end = lseek(f->fd, 0, SEEK_END);
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250 if (end < 0)
251 return errno;
252
253 *bytes = end;
254 return 0;
255}
256#endif
257
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258#ifdef FIO_USE_GENERIC_RAND
259typedef unsigned int os_random_state_t;
260
261static inline void os_random_seed(unsigned long seed, os_random_state_t *rs)
262{
263 srand(seed);
264}
265
266static inline long os_random_long(os_random_state_t *rs)
267{
268 long val;
269
270 val = rand_r(rs);
271 return val;
272}
273#endif
274
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275#ifdef FIO_USE_GENERIC_INIT_RANDOM_STATE
276extern void td_fill_rand_seeds(struct thread_data *td);
277/*
278 * Initialize the various random states we need (random io, block size ranges,
279 * read/write mix, etc).
280 */
281static inline int init_random_state(struct thread_data *td, unsigned long *rand_seeds, int size)
282{
283 int fd;
284
285 fd = open("/dev/urandom", O_RDONLY);
286 if (fd == -1) {
287 return 1;
288 }
289
290 if (read(fd, rand_seeds, size) < size) {
291 close(fd);
292 return 1;
293 }
294
295 close(fd);
296 td_fill_rand_seeds(td);
297 return 0;
298}
299#endif
300
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301#ifndef FIO_HAVE_FS_STAT
302static inline unsigned long long get_fs_size(const char *path)
303{
304 return 0;
305}
306#endif
307
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308#ifndef FIO_HAVE_CPU_ONLINE_SYSCONF
309static inline unsigned int cpus_online(void)
310{
311 return sysconf(_SC_NPROCESSORS_ONLN);
312}
313#endif
314
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315#ifndef FIO_HAVE_GETTID
316static inline int gettid(void)
317{
318 return getpid();
319}
320#endif
321
ebac4655 322#endif