Add a typecheck for the endianness conversions
[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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11#include "../arch/arch.h"
12
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13enum {
14 os_linux = 1,
15 os_aix,
16 os_freebsd,
17 os_hpux,
18 os_mac,
19 os_netbsd,
3cd4c66f 20 os_openbsd,
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21 os_solaris,
22 os_windows,
ec5c6b12 23 os_android,
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24
25 os_nr,
26};
27
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28#if defined(__ANDROID__)
29#include "os-android.h"
30#elif defined(__linux__)
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31#include "os-linux.h"
32#elif defined(__FreeBSD__)
33#include "os-freebsd.h"
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34#elif defined(__OpenBSD__)
35#include "os-openbsd.h"
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36#elif defined(__NetBSD__)
37#include "os-netbsd.h"
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38#elif defined(__sun__)
39#include "os-solaris.h"
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40#elif defined(__APPLE__)
41#include "os-mac.h"
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42#elif defined(_AIX)
43#include "os-aix.h"
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44#elif defined(__hpux)
45#include "os-hpux.h"
93bcfd20 46#elif defined(WIN32)
03e20d68 47#include "os-windows.h"
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48#else
49#error "unsupported os"
50#endif
51
67bf9823 52#ifdef CONFIG_POSIXAIO
ebac4655 53#include <aio.h>
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54#ifndef FIO_OS_HAVE_AIOCB_TYPEDEF
55typedef struct aiocb os_aiocb_t;
56#endif
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57#endif
58
59#ifdef FIO_HAVE_SGIO
60#include <linux/fs.h>
61#include <scsi/sg.h>
62#endif
63
4feafb1e 64#ifndef CONFIG_STRSEP
00fb3c8d 65#include "../lib/strsep.h"
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66#endif
67
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68#ifdef MSG_DONTWAIT
69#define OS_MSG_DONTWAIT MSG_DONTWAIT
70#endif
71
4d8947de 72#ifndef POSIX_FADV_DONTNEED
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73#define POSIX_FADV_DONTNEED (0)
74#define POSIX_FADV_SEQUENTIAL (0)
75#define POSIX_FADV_RANDOM (0)
4d8947de 76#endif
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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)
c2acfbac 83#define fio_cpus_split(mask, cpu) (0)
7452440e 84typedef unsigned long os_cpu_mask_t;
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85#else
86extern int fio_cpus_split(os_cpu_mask_t *mask, unsigned int cpu);
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87#endif
88
89#ifndef FIO_HAVE_IOPRIO
28727df7 90#define ioprio_set(which, who, prioclass, prio) (0)
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91#endif
92
2c0ecd28 93#ifndef FIO_HAVE_ODIRECT
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94#define OS_O_DIRECT 0
95#else
96#define OS_O_DIRECT O_DIRECT
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97#endif
98
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99#ifdef OS_O_ATOMIC
100#define FIO_O_ATOMIC OS_O_ATOMIC
101#else
102#define FIO_O_ATOMIC 0
103#endif
104
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105#ifndef FIO_HAVE_HUGETLB
106#define SHM_HUGETLB 0
d6dc02fb 107#define MAP_HUGETLB 0
4d8947de 108#ifndef FIO_HUGE_PAGE
74b025b0 109#define FIO_HUGE_PAGE 0
4d8947de 110#endif
74b025b0 111#else
cb25df61 112#ifndef FIO_HUGE_PAGE
ee0e0a71 113#define FIO_HUGE_PAGE 4194304
74b025b0 114#endif
cb25df61 115#endif
74b025b0 116
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117#ifndef FIO_HAVE_MMAP_HUGE
118#define MAP_HUGETLB 0
119#endif
120
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121#ifndef FIO_O_NOATIME
122#define FIO_O_NOATIME 0
123#endif
124
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125#ifndef OS_RAND_MAX
126#define OS_RAND_MAX RAND_MAX
127#endif
128
07e5b264 129#ifndef FIO_HAVE_RAWBIND
8cc7afa9 130#define fio_lookup_raw(dev, majdev, mindev) 1
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131#endif
132
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133#ifndef FIO_PREFERRED_ENGINE
134#define FIO_PREFERRED_ENGINE "sync"
135#endif
136
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137#ifndef FIO_OS_PATH_SEPARATOR
138#define FIO_OS_PATH_SEPARATOR "/"
139#endif
140
16de1bf9 141#ifndef FIO_PREFERRED_CLOCK_SOURCE
86e53416 142#ifdef CONFIG_CLOCK_GETTIME
16de1bf9 143#define FIO_PREFERRED_CLOCK_SOURCE CS_CGETTIME
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144#else
145#define FIO_PREFERRED_CLOCK_SOURCE CS_GTOD
146#endif
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147#endif
148
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149#ifndef FIO_MAX_JOBS
150#define FIO_MAX_JOBS 2048
151#endif
152
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153#ifndef CONFIG_SOCKLEN_T
154typedef unsigned int socklen_t;
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155#endif
156
45054cbe 157#ifndef FIO_OS_HAS_CTIME_R
1f81991e 158#define os_ctime_r(x, y, z) (void) ctime_r((x), (y))
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159#endif
160
901ebe18 161#ifdef FIO_USE_GENERIC_SWAP
9677bec3 162static inline uint16_t fio_swap16(uint16_t val)
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163{
164 return (val << 8) | (val >> 8);
165}
166
901ebe18 167static inline uint32_t fio_swap32(uint32_t val)
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168{
169 val = ((val & 0xff00ff00UL) >> 8) | ((val & 0x00ff00ffUL) << 8);
170
171 return (val >> 16) | (val << 16);
172}
173
901ebe18 174static inline uint64_t fio_swap64(uint64_t val)
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175{
176 val = ((val & 0xff00ff00ff00ff00ULL) >> 8) |
177 ((val & 0x00ff00ff00ff00ffULL) << 8);
178 val = ((val & 0xffff0000ffff0000ULL) >> 16) |
179 ((val & 0x0000ffff0000ffffULL) << 16);
180
181 return (val >> 32) | (val << 32);
182}
183#endif
184
ec5c6b12 185#ifndef FIO_HAVE_BYTEORDER_FUNCS
0dcebdf4 186#ifdef CONFIG_LITTLE_ENDIAN
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187#define __le16_to_cpu(x) (x)
188#define __le32_to_cpu(x) (x)
189#define __le64_to_cpu(x) (x)
190#define __cpu_to_le16(x) (x)
191#define __cpu_to_le32(x) (x)
192#define __cpu_to_le64(x) (x)
193#else
194#define __le16_to_cpu(x) fio_swap16(x)
195#define __le32_to_cpu(x) fio_swap32(x)
196#define __le64_to_cpu(x) fio_swap64(x)
197#define __cpu_to_le16(x) fio_swap16(x)
198#define __cpu_to_le32(x) fio_swap32(x)
199#define __cpu_to_le64(x) fio_swap64(x)
200#endif
ec5c6b12 201#endif /* FIO_HAVE_BYTEORDER_FUNCS */
8111092f 202
0bbe46e7 203#ifdef FIO_INTERNAL
8111092f 204#define le16_to_cpu(val) ({ \
ff8039b7 205 typecheck(uint16_t, val); \
c46fda90 206 __le16_to_cpu(val); \
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207})
208#define le32_to_cpu(val) ({ \
ff8039b7 209 typecheck(uint32_t, val); \
c46fda90 210 __le32_to_cpu(val); \
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211})
212#define le64_to_cpu(val) ({ \
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213 typecheck(uint64_t, val); \
214 __le64_to_cpu(val); \
8111092f 215})
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216#endif
217
8111092f 218#define cpu_to_le16(val) ({ \
ff8039b7 219 typecheck(uint16_t, val); \
c46fda90 220 __cpu_to_le16(val); \
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221})
222#define cpu_to_le32(val) ({ \
ff8039b7 223 typecheck(uint32_t, val); \
c46fda90 224 __cpu_to_le32(val); \
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225})
226#define cpu_to_le64(val) ({ \
ff8039b7 227 typecheck(uint64_t, val); \
c46fda90 228 __cpu_to_le64(val); \
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229})
230
5e62c22a 231#ifndef FIO_HAVE_BLKTRACE
d95b34a6 232static inline int is_blktrace(const char *fname, int *need_swap)
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233{
234 return 0;
235}
5921e80c 236struct thread_data;
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237static inline int load_blktrace(struct thread_data *td, const char *fname,
238 int need_swap)
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239{
240 return 1;
241}
242#endif
243
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244#define FIO_DEF_CL_SIZE 128
245
246static inline int os_cache_line_size(void)
247{
248#ifdef FIO_HAVE_CL_SIZE
249 int ret = arch_cache_line_size();
250
251 if (ret <= 0)
252 return FIO_DEF_CL_SIZE;
253
254 return ret;
255#else
256 return FIO_DEF_CL_SIZE;
257#endif
258}
259
792d5517 260#ifdef FIO_USE_GENERIC_BDEV_SIZE
ecc314ba 261static inline int blockdev_size(struct fio_file *f, unsigned long long *bytes)
792d5517 262{
3b2e1464 263 off_t end;
792d5517 264
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265 *bytes = 0;
266
ecc314ba 267 end = lseek(f->fd, 0, SEEK_END);
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268 if (end < 0)
269 return errno;
270
271 *bytes = end;
272 return 0;
273}
274#endif
275
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276#ifdef FIO_USE_GENERIC_RAND
277typedef unsigned int os_random_state_t;
278
279static inline void os_random_seed(unsigned long seed, os_random_state_t *rs)
280{
281 srand(seed);
282}
283
284static inline long os_random_long(os_random_state_t *rs)
285{
286 long val;
287
288 val = rand_r(rs);
289 return val;
290}
291#endif
292
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293#ifdef FIO_USE_GENERIC_INIT_RANDOM_STATE
294extern void td_fill_rand_seeds(struct thread_data *td);
295/*
296 * Initialize the various random states we need (random io, block size ranges,
297 * read/write mix, etc).
298 */
299static inline int init_random_state(struct thread_data *td, unsigned long *rand_seeds, int size)
300{
301 int fd;
302
303 fd = open("/dev/urandom", O_RDONLY);
304 if (fd == -1) {
305 return 1;
306 }
307
308 if (read(fd, rand_seeds, size) < size) {
309 close(fd);
310 return 1;
311 }
312
313 close(fd);
314 td_fill_rand_seeds(td);
315 return 0;
316}
317#endif
318
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319#ifndef FIO_HAVE_FS_STAT
320static inline unsigned long long get_fs_size(const char *path)
321{
322 return 0;
323}
324#endif
325
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326#ifndef FIO_HAVE_CPU_ONLINE_SYSCONF
327static inline unsigned int cpus_online(void)
328{
329 return sysconf(_SC_NPROCESSORS_ONLN);
330}
331#endif
332
7221da37 333#ifndef CPU_COUNT
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334#ifdef FIO_HAVE_CPU_AFFINITY
335static inline int CPU_COUNT(os_cpu_mask_t *mask)
336{
337 int max_cpus = cpus_online();
338 int nr_cpus, i;
339
340 for (i = 0, nr_cpus = 0; i < max_cpus; i++)
341 if (fio_cpu_isset(mask, i))
342 nr_cpus++;
343
344 return nr_cpus;
345}
346#endif
347#endif
348
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349#ifndef FIO_HAVE_GETTID
350static inline int gettid(void)
351{
352 return getpid();
353}
354#endif
355
ebac4655 356#endif