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1 | #ifndef FIO_OS_ANDROID_H |
2 | #define FIO_OS_ANDROID_H | |
3 | ||
4 | #define FIO_OS os_android | |
5 | ||
6 | #include <sys/ioctl.h> | |
7 | #include <sys/uio.h> | |
8 | #include <sys/syscall.h> | |
9 | #include <sys/vfs.h> | |
10 | #include <unistd.h> | |
11 | #include <fcntl.h> | |
12 | #include <errno.h> | |
13 | #include <sched.h> | |
14 | #include <linux/unistd.h> | |
15 | #include <linux/major.h> | |
16 | #include <endian.h> | |
17 | ||
18 | #include "indirect.h" | |
19 | #include "binject.h" | |
20 | #include "../file.h" | |
21 | ||
22 | #define FIO_HAVE_DISK_UTIL | |
23 | #define FIO_HAVE_SPLICE | |
24 | #define FIO_HAVE_IOSCHED_SWITCH | |
25 | #define FIO_HAVE_ODIRECT | |
26 | #define FIO_HAVE_HUGETLB | |
27 | #define FIO_HAVE_BLKTRACE | |
28 | #define FIO_HAVE_STRSEP | |
29 | #define FIO_HAVE_POSIXAIO_FSYNC | |
30 | #define FIO_HAVE_PSHARED_MUTEX | |
31 | #define FIO_HAVE_CL_SIZE | |
32 | #define FIO_HAVE_FDATASYNC | |
33 | #define FIO_HAVE_FS_STAT | |
34 | #define FIO_HAVE_TRIM | |
35 | #define FIO_HAVE_CLOCK_MONOTONIC | |
36 | #define FIO_HAVE_GETTID | |
37 | #define FIO_USE_GENERIC_INIT_RANDOM_STATE | |
38 | #define FIO_HAVE_E4_ENG | |
39 | #define FIO_HAVE_BYTEORDER_FUNCS | |
40 | ||
41 | #define OS_MAP_ANON MAP_ANONYMOUS | |
42 | ||
43 | #define posix_madvise madvise | |
44 | #define POSIX_MADV_DONTNEED MADV_DONTNEED | |
45 | #define POSIX_MADV_SEQUENTIAL MADV_SEQUENTIAL | |
46 | #define POSIX_MADV_RANDOM MADV_RANDOM | |
47 | #ifdef MADV_REMOVE | |
48 | #define FIO_MADV_FREE MADV_REMOVE | |
49 | #endif | |
50 | ||
51 | ||
52 | /* | |
53 | * The Android NDK doesn't currently export <sys/shm.h>, so define the | |
54 | * necessary stuff here. | |
55 | */ | |
56 | ||
57 | #include <linux/shm.h> | |
58 | #define SHM_HUGETLB 04000 | |
59 | ||
60 | static inline int shmctl (int __shmid, int __cmd, struct shmid_ds *__buf) | |
61 | { | |
62 | return syscall(__NR_shmctl, __shmid, __cmd, __buf); | |
63 | } | |
64 | ||
65 | static inline int shmget (key_t __key, size_t __size, int __shmflg) | |
66 | { | |
67 | return syscall(__NR_shmget, __key, __size, __shmflg); | |
68 | } | |
69 | ||
70 | static inline void *shmat (int __shmid, const void *__shmaddr, int __shmflg) | |
71 | { | |
72 | return (void *)syscall(__NR_shmat, __shmid, __shmaddr, __shmflg); | |
73 | } | |
74 | ||
75 | static inline int shmdt (const void *__shmaddr) | |
76 | { | |
77 | return syscall(__NR_shmctl, __shmaddr); | |
78 | } | |
79 | ||
80 | ||
81 | /* | |
82 | * Just check for SPLICE_F_MOVE, if that isn't there, assume the others | |
83 | * aren't either. | |
84 | */ | |
85 | #ifndef SPLICE_F_MOVE | |
86 | #define SPLICE_F_MOVE (0x01) /* move pages instead of copying */ | |
87 | #define SPLICE_F_NONBLOCK (0x02) /* don't block on the pipe splicing (but */ | |
88 | /* we may still block on the fd we splice */ | |
89 | /* from/to, of course */ | |
90 | #define SPLICE_F_MORE (0x04) /* expect more data */ | |
91 | #define SPLICE_F_GIFT (0x08) /* pages passed in are a gift */ | |
92 | ||
93 | static inline int splice(int fdin, loff_t *off_in, int fdout, loff_t *off_out, | |
94 | size_t len, unsigned int flags) | |
95 | { | |
96 | return syscall(__NR_sys_splice, fdin, off_in, fdout, off_out, len, flags); | |
97 | } | |
98 | ||
99 | static inline int tee(int fdin, int fdout, size_t len, unsigned int flags) | |
100 | { | |
101 | return syscall(__NR_sys_tee, fdin, fdout, len, flags); | |
102 | } | |
103 | ||
104 | static inline int vmsplice(int fd, const struct iovec *iov, | |
105 | unsigned long nr_segs, unsigned int flags) | |
106 | { | |
107 | return syscall(__NR_sys_vmsplice, fd, iov, nr_segs, flags); | |
108 | } | |
109 | #endif | |
110 | ||
111 | #define SPLICE_DEF_SIZE (64*1024) | |
112 | ||
113 | #ifndef BLKGETSIZE64 | |
114 | #define BLKGETSIZE64 _IOR(0x12,114,size_t) | |
115 | #endif | |
116 | ||
117 | #ifndef BLKFLSBUF | |
118 | #define BLKFLSBUF _IO(0x12,97) | |
119 | #endif | |
120 | ||
121 | #ifndef BLKDISCARD | |
122 | #define BLKDISCARD _IO(0x12,119) | |
123 | #endif | |
124 | ||
125 | static inline int blockdev_invalidate_cache(struct fio_file *f) | |
126 | { | |
127 | return ioctl(f->fd, BLKFLSBUF); | |
128 | } | |
129 | ||
130 | static inline int blockdev_size(struct fio_file *f, unsigned long long *bytes) | |
131 | { | |
132 | if (!ioctl(f->fd, BLKGETSIZE64, bytes)) | |
133 | return 0; | |
134 | ||
135 | return errno; | |
136 | } | |
137 | ||
138 | static inline unsigned long long os_phys_mem(void) | |
139 | { | |
140 | long pagesize, pages; | |
141 | ||
142 | pagesize = sysconf(_SC_PAGESIZE); | |
143 | pages = sysconf(_SC_PHYS_PAGES); | |
144 | if (pages == -1 || pagesize == -1) | |
145 | return 0; | |
146 | ||
147 | return (unsigned long long) pages * (unsigned long long) pagesize; | |
148 | } | |
149 | ||
150 | typedef struct { unsigned short r[3]; } os_random_state_t; | |
151 | ||
152 | static inline void os_random_seed(unsigned long seed, os_random_state_t *rs) | |
153 | { | |
154 | rs->r[0] = seed & 0xffff; | |
155 | seed >>= 16; | |
156 | rs->r[1] = seed & 0xffff; | |
157 | seed >>= 16; | |
158 | rs->r[2] = seed & 0xffff; | |
159 | seed48(rs->r); | |
160 | } | |
161 | ||
162 | static inline long os_random_long(os_random_state_t *rs) | |
163 | { | |
164 | return nrand48(rs->r); | |
165 | } | |
166 | ||
167 | #ifdef O_NOATIME | |
168 | #define FIO_O_NOATIME O_NOATIME | |
169 | #else | |
170 | #define FIO_O_NOATIME 0 | |
171 | #endif | |
172 | ||
173 | #if __BYTE_ORDER == __LITTLE_ENDIAN | |
174 | #define FIO_LITTLE_ENDIAN | |
175 | #elif __BYTE_ORDER == __BIG_ENDIAN | |
176 | #define FIO_BIG_ENDIAN | |
177 | #else | |
178 | #error "Unknown endianness" | |
179 | #endif | |
180 | ||
181 | #define fio_swap16(x) __bswap_16(x) | |
182 | #define fio_swap32(x) __bswap_32(x) | |
183 | #define fio_swap64(x) __bswap_64(x) | |
184 | ||
185 | #define CACHE_LINE_FILE \ | |
186 | "/sys/devices/system/cpu/cpu0/cache/index0/coherency_line_size" | |
187 | ||
188 | static inline int arch_cache_line_size(void) | |
189 | { | |
190 | char size[32]; | |
191 | int fd, ret; | |
192 | ||
193 | fd = open(CACHE_LINE_FILE, O_RDONLY); | |
194 | if (fd < 0) | |
195 | return -1; | |
196 | ||
197 | ret = read(fd, size, sizeof(size)); | |
198 | ||
199 | close(fd); | |
200 | ||
201 | if (ret <= 0) | |
202 | return -1; | |
203 | else | |
204 | return atoi(size); | |
205 | } | |
206 | ||
207 | static inline unsigned long long get_fs_size(const char *path) | |
208 | { | |
209 | unsigned long long ret; | |
210 | struct statfs s; | |
211 | ||
212 | if (statfs(path, &s) < 0) | |
213 | return -1ULL; | |
214 | ||
215 | ret = s.f_bsize; | |
216 | ret *= (unsigned long long) s.f_bfree; | |
217 | return ret; | |
218 | } | |
219 | ||
220 | static inline int os_trim(int fd, unsigned long long start, | |
221 | unsigned long long len) | |
222 | { | |
223 | uint64_t range[2]; | |
224 | ||
225 | range[0] = start; | |
226 | range[1] = len; | |
227 | ||
228 | if (!ioctl(fd, BLKDISCARD, range)) | |
229 | return 0; | |
230 | ||
231 | return errno; | |
232 | } | |
233 | ||
234 | #endif |