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#ifndef FIO_OS_H
#define FIO_OS_H
#include <sys/types.h>
#include <unistd.h>
#if defined(__linux__)
#include "os-linux.h"
#elif defined(__FreeBSD__)
#include "os-freebsd.h"
#elif defined(__NetBSD__)
#include "os-netbsd.h"
#elif defined(__sun__)
#include "os-solaris.h"
#elif defined(__APPLE__)
#include "os-mac.h"
#elif defined(_AIX)
#include "os-aix.h"
#else
#error "unsupported os"
#endif
#ifdef FIO_HAVE_LIBAIO
#include <libaio.h>
#endif
#ifdef FIO_HAVE_POSIXAIO
#include <aio.h>
#endif
#ifdef FIO_HAVE_SGIO
#include <linux/fs.h>
#include <scsi/sg.h>
#endif
#ifndef FIO_HAVE_STRSEP
#include "../lib/strsep.h"
#endif
#ifdef MSG_DONTWAIT
#define OS_MSG_DONTWAIT MSG_DONTWAIT
#endif
#ifndef FIO_HAVE_FADVISE
#define fadvise(fd, off, len, advice) (0)
#ifndef POSIX_FADV_DONTNEED
#define POSIX_FADV_DONTNEED (0)
#define POSIX_FADV_SEQUENTIAL (0)
#define POSIX_FADV_RANDOM (0)
#endif
#endif /* FIO_HAVE_FADVISE */
#ifndef FIO_HAVE_CPU_AFFINITY
#define fio_setaffinity(pid, mask) (0)
#define fio_getaffinity(pid, mask) do { } while (0)
#define fio_cpu_clear(mask, cpu) do { } while (0)
#define fio_cpuset_exit(mask) (-1)
typedef unsigned long os_cpu_mask_t;
#endif
#ifndef FIO_HAVE_IOPRIO
#define ioprio_set(which, who, prio) (0)
#endif
#ifndef FIO_HAVE_ODIRECT
#define OS_O_DIRECT 0
#else
#define OS_O_DIRECT O_DIRECT
#endif
#ifndef FIO_HAVE_HUGETLB
#define SHM_HUGETLB 0
#ifndef FIO_HUGE_PAGE
#define FIO_HUGE_PAGE 0
#endif
#else
#ifndef FIO_HUGE_PAGE
#define FIO_HUGE_PAGE 4194304
#endif
#endif
#ifndef FIO_O_NOATIME
#define FIO_O_NOATIME 0
#endif
#ifndef OS_RAND_MAX
#define OS_RAND_MAX RAND_MAX
#endif
#ifndef FIO_HAVE_RAWBIND
#define fio_lookup_raw(dev, majdev, mindev) 1
#endif
#ifndef FIO_HAVE_BLKTRACE
static inline int is_blktrace(const char *fname)
{
return 0;
}
struct thread_data;
static inline int load_blktrace(struct thread_data *td, const char *fname)
{
return 1;
}
#endif
#define FIO_DEF_CL_SIZE 128
static inline int os_cache_line_size(void)
{
#ifdef FIO_HAVE_CL_SIZE
int ret = arch_cache_line_size();
if (ret <= 0)
return FIO_DEF_CL_SIZE;
return ret;
#else
return FIO_DEF_CL_SIZE;
#endif
}
#ifdef FIO_USE_GENERIC_BDEV_SIZE
static inline int blockdev_size(int fd, unsigned long long *bytes)
{
off_t end;
*bytes = 0;
end = lseek(fd, 0, SEEK_END);
if (end < 0)
return errno;
*bytes = end;
return 0;
}
#endif
#ifdef FIO_USE_GENERIC_RAND
typedef unsigned int os_random_state_t;
static inline void os_random_seed(unsigned long seed, os_random_state_t *rs)
{
srand(seed);
}
static inline long os_random_long(os_random_state_t *rs)
{
long val;
val = rand_r(rs);
return val;
}
#endif
#ifndef FIO_HAVE_FS_STAT
static inline unsigned long long get_fs_size(const char *path)
{
return 0;
}
#endif
#endif
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