| 1 | #ifndef FIO_OS_H |
| 2 | #define FIO_OS_H |
| 3 | |
| 4 | #include <sys/types.h> |
| 5 | #include <pthread.h> |
| 6 | #include <unistd.h> |
| 7 | #include <stdlib.h> |
| 8 | |
| 9 | #if defined(__linux__) |
| 10 | #include "os-linux.h" |
| 11 | #elif defined(__FreeBSD__) |
| 12 | #include "os-freebsd.h" |
| 13 | #elif defined(__NetBSD__) |
| 14 | #include "os-netbsd.h" |
| 15 | #elif defined(__sun__) |
| 16 | #include "os-solaris.h" |
| 17 | #elif defined(__APPLE__) |
| 18 | #include "os-mac.h" |
| 19 | #elif defined(_AIX) |
| 20 | #include "os-aix.h" |
| 21 | #elif defined(__hpux) |
| 22 | #include "os-hpux.h" |
| 23 | #elif defined(__CYGWIN__) |
| 24 | #include "os-windows.h" |
| 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> |
| 35 | #endif |
| 36 | |
| 37 | #ifdef FIO_HAVE_SGIO |
| 38 | #include <linux/fs.h> |
| 39 | #include <scsi/sg.h> |
| 40 | #endif |
| 41 | |
| 42 | #ifndef FIO_HAVE_STRSEP |
| 43 | #include "../lib/strsep.h" |
| 44 | #endif |
| 45 | |
| 46 | #ifdef MSG_DONTWAIT |
| 47 | #define OS_MSG_DONTWAIT MSG_DONTWAIT |
| 48 | #endif |
| 49 | |
| 50 | #ifndef FIO_HAVE_FADVISE |
| 51 | #define posix_fadvise(fd, off, len, advice) (0) |
| 52 | |
| 53 | #ifndef POSIX_FADV_DONTNEED |
| 54 | #define POSIX_FADV_DONTNEED (0) |
| 55 | #define POSIX_FADV_SEQUENTIAL (0) |
| 56 | #define POSIX_FADV_RANDOM (0) |
| 57 | #endif |
| 58 | #endif /* FIO_HAVE_FADVISE */ |
| 59 | |
| 60 | #ifndef FIO_HAVE_CPU_AFFINITY |
| 61 | #define fio_setaffinity(pid, mask) (0) |
| 62 | #define fio_getaffinity(pid, mask) do { } while (0) |
| 63 | #define fio_cpu_clear(mask, cpu) do { } while (0) |
| 64 | #define fio_cpuset_exit(mask) (-1) |
| 65 | typedef unsigned long os_cpu_mask_t; |
| 66 | #endif |
| 67 | |
| 68 | #ifndef FIO_HAVE_IOPRIO |
| 69 | #define ioprio_set(which, who, prio) (0) |
| 70 | #endif |
| 71 | |
| 72 | #ifndef FIO_HAVE_ODIRECT |
| 73 | #define OS_O_DIRECT 0 |
| 74 | #else |
| 75 | #define OS_O_DIRECT O_DIRECT |
| 76 | #endif |
| 77 | |
| 78 | #ifndef FIO_HAVE_HUGETLB |
| 79 | #define SHM_HUGETLB 0 |
| 80 | #ifndef FIO_HUGE_PAGE |
| 81 | #define FIO_HUGE_PAGE 0 |
| 82 | #endif |
| 83 | #else |
| 84 | #ifndef FIO_HUGE_PAGE |
| 85 | #define FIO_HUGE_PAGE 4194304 |
| 86 | #endif |
| 87 | #endif |
| 88 | |
| 89 | #ifndef FIO_O_NOATIME |
| 90 | #define FIO_O_NOATIME 0 |
| 91 | #endif |
| 92 | |
| 93 | #ifndef OS_RAND_MAX |
| 94 | #define OS_RAND_MAX RAND_MAX |
| 95 | #endif |
| 96 | |
| 97 | #ifdef FIO_HAVE_CLOCK_MONOTONIC |
| 98 | #define FIO_TIMER_CLOCK CLOCK_MONOTONIC |
| 99 | #else |
| 100 | #define FIO_TIMER_CLOCK CLOCK_REALTIME |
| 101 | #endif |
| 102 | |
| 103 | #ifndef FIO_HAVE_RAWBIND |
| 104 | #define fio_lookup_raw(dev, majdev, mindev) 1 |
| 105 | #endif |
| 106 | |
| 107 | #ifndef FIO_PREFERRED_ENGINE |
| 108 | #define FIO_PREFERRED_ENGINE "sync" |
| 109 | #endif |
| 110 | |
| 111 | #ifndef FIO_MAX_JOBS |
| 112 | #define FIO_MAX_JOBS 2048 |
| 113 | #endif |
| 114 | |
| 115 | #ifndef FIO_HAVE_BLKTRACE |
| 116 | static inline int is_blktrace(const char *fname) |
| 117 | { |
| 118 | return 0; |
| 119 | } |
| 120 | struct thread_data; |
| 121 | static inline int load_blktrace(struct thread_data *td, const char *fname) |
| 122 | { |
| 123 | return 1; |
| 124 | } |
| 125 | #endif |
| 126 | |
| 127 | #define FIO_DEF_CL_SIZE 128 |
| 128 | |
| 129 | static inline int os_cache_line_size(void) |
| 130 | { |
| 131 | #ifdef FIO_HAVE_CL_SIZE |
| 132 | int ret = arch_cache_line_size(); |
| 133 | |
| 134 | if (ret <= 0) |
| 135 | return FIO_DEF_CL_SIZE; |
| 136 | |
| 137 | return ret; |
| 138 | #else |
| 139 | return FIO_DEF_CL_SIZE; |
| 140 | #endif |
| 141 | } |
| 142 | |
| 143 | #ifdef FIO_USE_GENERIC_BDEV_SIZE |
| 144 | static inline int blockdev_size(struct fio_file *f, unsigned long long *bytes) |
| 145 | { |
| 146 | off_t end; |
| 147 | |
| 148 | *bytes = 0; |
| 149 | |
| 150 | end = lseek(f->fd, 0, SEEK_END); |
| 151 | if (end < 0) |
| 152 | return errno; |
| 153 | |
| 154 | *bytes = end; |
| 155 | return 0; |
| 156 | } |
| 157 | #endif |
| 158 | |
| 159 | #ifdef FIO_USE_GENERIC_RAND |
| 160 | typedef unsigned int os_random_state_t; |
| 161 | |
| 162 | static inline void os_random_seed(unsigned long seed, os_random_state_t *rs) |
| 163 | { |
| 164 | srand(seed); |
| 165 | } |
| 166 | |
| 167 | static inline long os_random_long(os_random_state_t *rs) |
| 168 | { |
| 169 | long val; |
| 170 | |
| 171 | val = rand_r(rs); |
| 172 | return val; |
| 173 | } |
| 174 | #endif |
| 175 | |
| 176 | #ifndef FIO_HAVE_FS_STAT |
| 177 | static inline unsigned long long get_fs_size(const char *path) |
| 178 | { |
| 179 | return 0; |
| 180 | } |
| 181 | #endif |
| 182 | |
| 183 | #ifndef FIO_HAVE_CPU_ONLINE_SYSCONF |
| 184 | static inline unsigned int cpus_online(void) |
| 185 | { |
| 186 | return sysconf(_SC_NPROCESSORS_ONLN); |
| 187 | } |
| 188 | #endif |
| 189 | |
| 190 | #endif |