Finalize (?) byte swap/endian stuff
[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>
03e20d68 5#include <pthread.h>
a14ca44a 6#include <unistd.h>
ecc314ba 7#include <stdlib.h>
a14ca44a 8
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9#if defined(__linux__)
10#include "os-linux.h"
11#elif defined(__FreeBSD__)
12#include "os-freebsd.h"
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13#elif defined(__NetBSD__)
14#include "os-netbsd.h"
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15#elif defined(__sun__)
16#include "os-solaris.h"
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17#elif defined(__APPLE__)
18#include "os-mac.h"
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19#elif defined(_AIX)
20#include "os-aix.h"
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21#elif defined(__hpux)
22#include "os-hpux.h"
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23#elif defined(__CYGWIN__)
24#include "os-windows.h"
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25#else
26#error "unsupported os"
27#endif
28
29#ifdef FIO_HAVE_LIBAIO
30#include <libaio.h>
31#endif
32
33#ifdef FIO_HAVE_POSIXAIO
34#include <aio.h>
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35#ifndef FIO_OS_HAVE_AIOCB_TYPEDEF
36typedef struct aiocb os_aiocb_t;
37#endif
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38#endif
39
40#ifdef FIO_HAVE_SGIO
41#include <linux/fs.h>
42#include <scsi/sg.h>
43#endif
44
5921e80c 45#ifndef FIO_HAVE_STRSEP
00fb3c8d 46#include "../lib/strsep.h"
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47#endif
48
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49#ifdef MSG_DONTWAIT
50#define OS_MSG_DONTWAIT MSG_DONTWAIT
51#endif
52
ebac4655 53#ifndef FIO_HAVE_FADVISE
ecc314ba 54#define posix_fadvise(fd, off, len, advice) (0)
ebac4655 55
4d8947de 56#ifndef POSIX_FADV_DONTNEED
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57#define POSIX_FADV_DONTNEED (0)
58#define POSIX_FADV_SEQUENTIAL (0)
59#define POSIX_FADV_RANDOM (0)
4d8947de 60#endif
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61#endif /* FIO_HAVE_FADVISE */
62
63#ifndef FIO_HAVE_CPU_AFFINITY
e8462bd8 64#define fio_setaffinity(pid, mask) (0)
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65#define fio_getaffinity(pid, mask) do { } while (0)
66#define fio_cpu_clear(mask, cpu) do { } while (0)
85daf2c1 67#define fio_cpuset_exit(mask) (-1)
7452440e 68typedef unsigned long os_cpu_mask_t;
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69#endif
70
71#ifndef FIO_HAVE_IOPRIO
72#define ioprio_set(which, who, prio) (0)
73#endif
74
2c0ecd28 75#ifndef FIO_HAVE_ODIRECT
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76#define OS_O_DIRECT 0
77#else
78#define OS_O_DIRECT O_DIRECT
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79#endif
80
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81#ifndef FIO_HAVE_HUGETLB
82#define SHM_HUGETLB 0
4d8947de 83#ifndef FIO_HUGE_PAGE
74b025b0 84#define FIO_HUGE_PAGE 0
4d8947de 85#endif
74b025b0 86#else
cb25df61 87#ifndef FIO_HUGE_PAGE
ee0e0a71 88#define FIO_HUGE_PAGE 4194304
74b025b0 89#endif
cb25df61 90#endif
74b025b0 91
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92#ifndef FIO_O_NOATIME
93#define FIO_O_NOATIME 0
94#endif
95
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96#ifndef OS_RAND_MAX
97#define OS_RAND_MAX RAND_MAX
98#endif
99
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100#ifdef FIO_HAVE_CLOCK_MONOTONIC
101#define FIO_TIMER_CLOCK CLOCK_MONOTONIC
102#else
103#define FIO_TIMER_CLOCK CLOCK_REALTIME
104#endif
105
07e5b264 106#ifndef FIO_HAVE_RAWBIND
8cc7afa9 107#define fio_lookup_raw(dev, majdev, mindev) 1
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108#endif
109
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110#ifndef FIO_PREFERRED_ENGINE
111#define FIO_PREFERRED_ENGINE "sync"
112#endif
113
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114#ifndef FIO_MAX_JOBS
115#define FIO_MAX_JOBS 2048
116#endif
117
901ebe18 118#ifdef FIO_USE_GENERIC_SWAP
9677bec3 119static inline uint16_t fio_swap16(uint16_t val)
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120{
121 return (val << 8) | (val >> 8);
122}
123
901ebe18 124static inline uint32_t fio_swap32(uint32_t val)
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125{
126 val = ((val & 0xff00ff00UL) >> 8) | ((val & 0x00ff00ffUL) << 8);
127
128 return (val >> 16) | (val << 16);
129}
130
901ebe18 131static inline uint64_t fio_swap64(uint64_t val)
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132{
133 val = ((val & 0xff00ff00ff00ff00ULL) >> 8) |
134 ((val & 0x00ff00ff00ff00ffULL) << 8);
135 val = ((val & 0xffff0000ffff0000ULL) >> 16) |
136 ((val & 0x0000ffff0000ffffULL) << 16);
137
138 return (val >> 32) | (val << 32);
139}
140#endif
141
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142#ifndef FIO_HAVE_BLKTRACE
143static inline int is_blktrace(const char *fname)
144{
145 return 0;
146}
5921e80c 147struct thread_data;
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148static inline int load_blktrace(struct thread_data *td, const char *fname)
149{
150 return 1;
151}
152#endif
153
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154#define FIO_DEF_CL_SIZE 128
155
156static inline int os_cache_line_size(void)
157{
158#ifdef FIO_HAVE_CL_SIZE
159 int ret = arch_cache_line_size();
160
161 if (ret <= 0)
162 return FIO_DEF_CL_SIZE;
163
164 return ret;
165#else
166 return FIO_DEF_CL_SIZE;
167#endif
168}
169
792d5517 170#ifdef FIO_USE_GENERIC_BDEV_SIZE
ecc314ba 171static inline int blockdev_size(struct fio_file *f, unsigned long long *bytes)
792d5517 172{
3b2e1464 173 off_t end;
792d5517 174
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175 *bytes = 0;
176
ecc314ba 177 end = lseek(f->fd, 0, SEEK_END);
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178 if (end < 0)
179 return errno;
180
181 *bytes = end;
182 return 0;
183}
184#endif
185
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186#ifdef FIO_USE_GENERIC_RAND
187typedef unsigned int os_random_state_t;
188
189static inline void os_random_seed(unsigned long seed, os_random_state_t *rs)
190{
191 srand(seed);
192}
193
194static inline long os_random_long(os_random_state_t *rs)
195{
196 long val;
197
198 val = rand_r(rs);
199 return val;
200}
201#endif
202
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203#ifndef FIO_HAVE_FS_STAT
204static inline unsigned long long get_fs_size(const char *path)
205{
206 return 0;
207}
208#endif
209
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210#ifndef FIO_HAVE_CPU_ONLINE_SYSCONF
211static inline unsigned int cpus_online(void)
212{
213 return sysconf(_SC_NPROCESSORS_ONLN);
214}
215#endif
216
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217#ifndef FIO_HAVE_GETTID
218static inline int gettid(void)
219{
220 return getpid();
221}
222#endif
223
ebac4655 224#endif