1 #ifndef FIO_OS_H
2 #define FIO_OS_H
3
4 #include <sys/types.h>
5 #include <sys/socket.h>
6 #include <fcntl.h>
7 #include <pthread.h>
8 #include <unistd.h>
9 #include <stdlib.h>
10
11 #include "../arch/arch.h"
12
13 enum {
14 os_linux = 1,
15 os_aix,
16 os_freebsd,
17 os_hpux,
18 os_mac,
19 os_netbsd,
20 os_openbsd,
21 os_solaris,
22 os_windows,
23 os_android,
24 os_dragonfly,
25
26 os_nr,
27 };
28
29 #if defined(__ANDROID__)
30 #include "os-android.h"
31 #elif defined(__linux__)
32 #include "os-linux.h"
33 #elif defined(__FreeBSD__)
34 #include "os-freebsd.h"
35 #elif defined(__OpenBSD__)
36 #include "os-openbsd.h"
37 #elif defined(__NetBSD__)
38 #include "os-netbsd.h"
39 #elif defined(__sun__)
40 #include "os-solaris.h"
41 #elif defined(__APPLE__)
42 #include "os-mac.h"
43 #elif defined(_AIX)
44 #include "os-aix.h"
45 #elif defined(__hpux)
46 #include "os-hpux.h"
47 #elif defined(WIN32)
48 #include "os-windows.h"
49 #elif defined (__DragonFly__)
50 #include "os-dragonfly.h"
51 #else
52 #error "unsupported os"
53 #endif
54
55 #ifdef CONFIG_POSIXAIO
56 #include <aio.h>
57 #ifndef FIO_OS_HAVE_AIOCB_TYPEDEF
58 typedef struct aiocb os_aiocb_t;
59 #endif
60 #endif
61
62 #ifdef FIO_HAVE_SGIO
63 #include <linux/fs.h>
64 #include <scsi/sg.h>
65 #endif
66
67 #ifndef CONFIG_STRSEP
68 #include "../lib/strsep.h"
69 #endif
70
71 #ifdef MSG_DONTWAIT
72 #define OS_MSG_DONTWAIT MSG_DONTWAIT
73 #endif
74
75 #ifndef POSIX_FADV_DONTNEED
76 #define POSIX_FADV_DONTNEED (0)
77 #define POSIX_FADV_SEQUENTIAL (0)
78 #define POSIX_FADV_RANDOM (0)
79 #endif
80
81 #ifndef FIO_HAVE_CPU_AFFINITY
82 #define fio_setaffinity(pid, mask) (0)
83 #define fio_getaffinity(pid, mask) do { } while (0)
84 #define fio_cpu_clear(mask, cpu) do { } while (0)
85 #define fio_cpuset_exit(mask) (-1)
86 #define fio_cpus_split(mask, cpu) (0)
87 typedef unsigned long os_cpu_mask_t;
88 #else
89 extern int fio_cpus_split(os_cpu_mask_t *mask, unsigned int cpu);
90 #endif
91
92 #ifndef FIO_HAVE_IOPRIO
93 #define ioprio_set(which, who, prioclass, prio) (0)
94 #endif
95
96 #ifndef FIO_HAVE_ODIRECT
97 #define OS_O_DIRECT 0
98 #else
99 #define OS_O_DIRECT O_DIRECT
100 #endif
101
102 #ifdef OS_O_ATOMIC
103 #define FIO_O_ATOMIC OS_O_ATOMIC
104 #else
105 #define FIO_O_ATOMIC 0
106 #endif
107
108 #ifndef FIO_HAVE_HUGETLB
109 #define SHM_HUGETLB 0
110 #define MAP_HUGETLB 0
111 #ifndef FIO_HUGE_PAGE
112 #define FIO_HUGE_PAGE 0
113 #endif
114 #else
115 #ifndef FIO_HUGE_PAGE
116 #define FIO_HUGE_PAGE 4194304
117 #endif
118 #endif
119
120 #ifndef FIO_HAVE_MMAP_HUGE
121 #define MAP_HUGETLB 0
122 #endif
123
124 #ifndef FIO_O_NOATIME
125 #define FIO_O_NOATIME 0
126 #endif
127
128 #ifndef OS_RAND_MAX
129 #define OS_RAND_MAX RAND_MAX
130 #endif
131
132 #ifndef FIO_HAVE_RAWBIND
133 #define fio_lookup_raw(dev, majdev, mindev) 1
134 #endif
135
136 #ifndef FIO_PREFERRED_ENGINE
137 #define FIO_PREFERRED_ENGINE "sync"
138 #endif
139
140 #ifndef FIO_OS_PATH_SEPARATOR
141 #define FIO_OS_PATH_SEPARATOR "/"
142 #endif
143
144 #ifndef FIO_PREFERRED_CLOCK_SOURCE
145 #ifdef CONFIG_CLOCK_GETTIME
146 #define FIO_PREFERRED_CLOCK_SOURCE CS_CGETTIME
147 #else
148 #define FIO_PREFERRED_CLOCK_SOURCE CS_GTOD
149 #endif
150 #endif
151
152 #ifndef FIO_MAX_JOBS
153 #define FIO_MAX_JOBS 2048
154 #endif
155
156 #ifndef CONFIG_SOCKLEN_T
157 typedef unsigned int socklen_t;
158 #endif
159
160 #ifndef FIO_OS_HAS_CTIME_R
161 #define os_ctime_r(x, y, z) (void) ctime_r((x), (y))
162 #endif
163
164 #ifdef FIO_USE_GENERIC_SWAP
fio_swap16(uint16_t val)165 static inline uint16_t fio_swap16(uint16_t val)
166 {
167 return (val << 8) | (val >> 8);
168 }
169
fio_swap32(uint32_t val)170 static inline uint32_t fio_swap32(uint32_t val)
171 {
172 val = ((val & 0xff00ff00UL) >> 8) | ((val & 0x00ff00ffUL) << 8);
173
174 return (val >> 16) | (val << 16);
175 }
176
fio_swap64(uint64_t val)177 static inline uint64_t fio_swap64(uint64_t val)
178 {
179 val = ((val & 0xff00ff00ff00ff00ULL) >> 8) |
180 ((val & 0x00ff00ff00ff00ffULL) << 8);
181 val = ((val & 0xffff0000ffff0000ULL) >> 16) |
182 ((val & 0x0000ffff0000ffffULL) << 16);
183
184 return (val >> 32) | (val << 32);
185 }
186 #endif
187
188 #ifndef FIO_HAVE_BYTEORDER_FUNCS
189 #ifdef CONFIG_LITTLE_ENDIAN
190 #define __le16_to_cpu(x) (x)
191 #define __le32_to_cpu(x) (x)
192 #define __le64_to_cpu(x) (x)
193 #define __cpu_to_le16(x) (x)
194 #define __cpu_to_le32(x) (x)
195 #define __cpu_to_le64(x) (x)
196 #else
197 #define __le16_to_cpu(x) fio_swap16(x)
198 #define __le32_to_cpu(x) fio_swap32(x)
199 #define __le64_to_cpu(x) fio_swap64(x)
200 #define __cpu_to_le16(x) fio_swap16(x)
201 #define __cpu_to_le32(x) fio_swap32(x)
202 #define __cpu_to_le64(x) fio_swap64(x)
203 #endif
204 #endif /* FIO_HAVE_BYTEORDER_FUNCS */
205
206 #ifdef FIO_INTERNAL
207 #define le16_to_cpu(val) ({ \
208 typecheck(uint16_t, val); \
209 __le16_to_cpu(val); \
210 })
211 #define le32_to_cpu(val) ({ \
212 typecheck(uint32_t, val); \
213 __le32_to_cpu(val); \
214 })
215 #define le64_to_cpu(val) ({ \
216 typecheck(uint64_t, val); \
217 __le64_to_cpu(val); \
218 })
219 #endif
220
221 #define cpu_to_le16(val) ({ \
222 typecheck(uint16_t, val); \
223 __cpu_to_le16(val); \
224 })
225 #define cpu_to_le32(val) ({ \
226 typecheck(uint32_t, val); \
227 __cpu_to_le32(val); \
228 })
229 #define cpu_to_le64(val) ({ \
230 typecheck(uint64_t, val); \
231 __cpu_to_le64(val); \
232 })
233
234 #ifndef FIO_HAVE_BLKTRACE
is_blktrace(const char * fname,int * need_swap)235 static inline int is_blktrace(const char *fname, int *need_swap)
236 {
237 return 0;
238 }
239 struct thread_data;
load_blktrace(struct thread_data * td,const char * fname,int need_swap)240 static inline int load_blktrace(struct thread_data *td, const char *fname,
241 int need_swap)
242 {
243 return 1;
244 }
245 #endif
246
247 #define FIO_DEF_CL_SIZE 128
248
os_cache_line_size(void)249 static inline int os_cache_line_size(void)
250 {
251 #ifdef FIO_HAVE_CL_SIZE
252 int ret = arch_cache_line_size();
253
254 if (ret <= 0)
255 return FIO_DEF_CL_SIZE;
256
257 return ret;
258 #else
259 return FIO_DEF_CL_SIZE;
260 #endif
261 }
262
263 #ifdef FIO_USE_GENERIC_BDEV_SIZE
blockdev_size(struct fio_file * f,unsigned long long * bytes)264 static inline int blockdev_size(struct fio_file *f, unsigned long long *bytes)
265 {
266 off_t end;
267
268 *bytes = 0;
269
270 end = lseek(f->fd, 0, SEEK_END);
271 if (end < 0)
272 return errno;
273
274 *bytes = end;
275 return 0;
276 }
277 #endif
278
279 #ifdef FIO_USE_GENERIC_RAND
280 typedef unsigned int os_random_state_t;
281
os_random_seed(unsigned long seed,os_random_state_t * rs)282 static inline void os_random_seed(unsigned long seed, os_random_state_t *rs)
283 {
284 srand(seed);
285 }
286
os_random_long(os_random_state_t * rs)287 static inline long os_random_long(os_random_state_t *rs)
288 {
289 long val;
290
291 val = rand_r(rs);
292 return val;
293 }
294 #endif
295
296 #ifdef FIO_USE_GENERIC_INIT_RANDOM_STATE
297 extern void td_fill_rand_seeds(struct thread_data *td);
298 /*
299 * Initialize the various random states we need (random io, block size ranges,
300 * read/write mix, etc).
301 */
init_random_state(struct thread_data * td,unsigned long * rand_seeds,int size)302 static inline int init_random_state(struct thread_data *td, unsigned long *rand_seeds, int size)
303 {
304 int fd;
305
306 fd = open("/dev/urandom", O_RDONLY);
307 if (fd == -1) {
308 return 1;
309 }
310
311 if (read(fd, rand_seeds, size) < size) {
312 close(fd);
313 return 1;
314 }
315
316 close(fd);
317 td_fill_rand_seeds(td);
318 return 0;
319 }
320 #endif
321
322 #ifndef FIO_HAVE_FS_STAT
get_fs_size(const char * path)323 static inline unsigned long long get_fs_size(const char *path)
324 {
325 return 0;
326 }
327 #endif
328
329 #ifndef FIO_HAVE_CPU_ONLINE_SYSCONF
cpus_online(void)330 static inline unsigned int cpus_online(void)
331 {
332 return sysconf(_SC_NPROCESSORS_ONLN);
333 }
334 #endif
335
336 #ifndef CPU_COUNT
337 #ifdef FIO_HAVE_CPU_AFFINITY
CPU_COUNT(os_cpu_mask_t * mask)338 static inline int CPU_COUNT(os_cpu_mask_t *mask)
339 {
340 int max_cpus = cpus_online();
341 int nr_cpus, i;
342
343 for (i = 0, nr_cpus = 0; i < max_cpus; i++)
344 if (fio_cpu_isset(mask, i))
345 nr_cpus++;
346
347 return nr_cpus;
348 }
349 #endif
350 #endif
351
352 #ifndef FIO_HAVE_GETTID
gettid(void)353 static inline int gettid(void)
354 {
355 return getpid();
356 }
357 #endif
358
359 #endif
360