1 #ifndef FIO_OS_ANDROID_H
2 #define FIO_OS_ANDROID_H
4 #define FIO_OS os_android
8 #include <sys/syscall.h>
14 #include <linux/unistd.h>
15 #include <linux/major.h>
20 #define FIO_HAVE_DISK_UTIL
21 #define FIO_HAVE_IOSCHED_SWITCH
22 #define FIO_HAVE_ODIRECT
23 #define FIO_HAVE_HUGETLB
24 #define FIO_HAVE_BLKTRACE
25 #define FIO_HAVE_PSHARED_MUTEX
26 #define FIO_HAVE_CL_SIZE
27 #define FIO_HAVE_FS_STAT
29 #define FIO_HAVE_GETTID
30 #define FIO_USE_GENERIC_INIT_RANDOM_STATE
31 #define FIO_HAVE_E4_ENG
32 #define FIO_HAVE_BYTEORDER_FUNCS
34 #define OS_MAP_ANON MAP_ANONYMOUS
36 #define posix_madvise madvise
37 #define POSIX_MADV_DONTNEED MADV_DONTNEED
38 #define POSIX_MADV_SEQUENTIAL MADV_SEQUENTIAL
39 #define POSIX_MADV_RANDOM MADV_RANDOM
41 #define FIO_MADV_FREE MADV_REMOVE
46 * The Android NDK doesn't currently export <sys/shm.h>, so define the
47 * necessary stuff here.
50 #include <linux/shm.h>
51 #define SHM_HUGETLB 04000
53 static inline int shmctl (int __shmid, int __cmd, struct shmid_ds *__buf)
55 return syscall(__NR_shmctl, __shmid, __cmd, __buf);
58 static inline int shmget (key_t __key, size_t __size, int __shmflg)
60 return syscall(__NR_shmget, __key, __size, __shmflg);
63 static inline void *shmat (int __shmid, const void *__shmaddr, int __shmflg)
65 return (void *)syscall(__NR_shmat, __shmid, __shmaddr, __shmflg);
68 static inline int shmdt (const void *__shmaddr)
70 return syscall(__NR_shmctl, __shmaddr);
74 #define SPLICE_DEF_SIZE (64*1024)
77 #define BLKGETSIZE64 _IOR(0x12,114,size_t)
81 #define BLKFLSBUF _IO(0x12,97)
85 #define BLKDISCARD _IO(0x12,119)
88 static inline int blockdev_invalidate_cache(struct fio_file *f)
90 return ioctl(f->fd, BLKFLSBUF);
93 static inline int blockdev_size(struct fio_file *f, unsigned long long *bytes)
95 if (!ioctl(f->fd, BLKGETSIZE64, bytes))
101 static inline unsigned long long os_phys_mem(void)
103 long pagesize, pages;
105 pagesize = sysconf(_SC_PAGESIZE);
106 pages = sysconf(_SC_PHYS_PAGES);
107 if (pages == -1 || pagesize == -1)
110 return (unsigned long long) pages * (unsigned long long) pagesize;
113 typedef struct { unsigned short r[3]; } os_random_state_t;
115 static inline void os_random_seed(unsigned long seed, os_random_state_t *rs)
117 rs->r[0] = seed & 0xffff;
119 rs->r[1] = seed & 0xffff;
121 rs->r[2] = seed & 0xffff;
125 static inline long os_random_long(os_random_state_t *rs)
127 return nrand48(rs->r);
131 #define FIO_O_NOATIME O_NOATIME
133 #define FIO_O_NOATIME 0
136 #define fio_swap16(x) __bswap_16(x)
137 #define fio_swap32(x) __bswap_32(x)
138 #define fio_swap64(x) __bswap_64(x)
140 #define CACHE_LINE_FILE \
141 "/sys/devices/system/cpu/cpu0/cache/index0/coherency_line_size"
143 static inline int arch_cache_line_size(void)
148 fd = open(CACHE_LINE_FILE, O_RDONLY);
152 ret = read(fd, size, sizeof(size));
162 static inline unsigned long long get_fs_size(const char *path)
164 unsigned long long ret;
167 if (statfs(path, &s) < 0)
171 ret *= (unsigned long long) s.f_bfree;
175 static inline int os_trim(int fd, unsigned long long start,
176 unsigned long long len)
183 if (!ioctl(fd, BLKDISCARD, range))