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#ifndef FIO_OS_H
#define FIO_OS_H
#include <sys/types.h>
#include <sys/socket.h>
#include <fcntl.h>
#include <pthread.h>
#include <unistd.h>
#include <stdlib.h>
#include <errno.h>
#include "../arch/arch.h" /* IWYU pragma: export */
#include "../lib/types.h"
enum {
os_linux = 1,
os_aix,
os_freebsd,
os_hpux,
os_mac,
os_netbsd,
os_openbsd,
os_solaris,
os_windows,
os_android,
os_dragonfly,
os_qnx,
os_nr,
};
typedef enum {
CPU_ARM64_CRC32C,
} cpu_features;
/* IWYU pragma: begin_exports */
#if defined(__linux__)
#include "os-linux.h"
#elif defined(__FreeBSD__)
#include "os-freebsd.h"
#elif defined(__OpenBSD__)
#include "os-openbsd.h"
#elif defined(__QNX__)
#include "os-qnx.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"
#elif defined(__hpux)
#include "os-hpux.h"
#elif defined(WIN32)
#include "os-windows.h"
#elif defined (__DragonFly__)
#include "os-dragonfly.h"
#else
#error "unsupported os"
#endif
#ifndef EDQUOT
#define EDQUOT EIO
#endif
#ifdef CONFIG_POSIXAIO
#include <aio.h>
#ifndef FIO_OS_HAVE_AIOCB_TYPEDEF
typedef struct aiocb os_aiocb_t;
#endif
#endif
#ifndef CONFIG_STRSEP
#include "../oslib/strsep.h"
#endif
#ifndef CONFIG_STRLCAT
#include "../oslib/strlcat.h"
#endif
/* IWYU pragma: end_exports */
#ifdef MSG_DONTWAIT
#define OS_MSG_DONTWAIT MSG_DONTWAIT
#endif
#ifndef POSIX_FADV_DONTNEED
#define POSIX_FADV_DONTNEED (0)
#define POSIX_FADV_SEQUENTIAL (0)
#define POSIX_FADV_RANDOM (0)
#define POSIX_FADV_NORMAL (0)
#endif
#ifndef FIO_HAVE_CPU_AFFINITY
#define fio_cpu_clear(mask, cpu) do { } while (0)
typedef unsigned long os_cpu_mask_t;
static inline int fio_setaffinity(int pid, os_cpu_mask_t cpumask)
{
return 0;
}
static inline int fio_getaffinity(int pid, os_cpu_mask_t *cpumask)
{
return -1;
}
static inline int fio_cpuset_exit(os_cpu_mask_t *mask)
{
return -1;
}
static inline int fio_cpus_split(os_cpu_mask_t *mask, unsigned int cpu_index)
{
return 0;
}
#else
extern int fio_cpus_split(os_cpu_mask_t *mask, unsigned int cpu);
#endif
#ifndef FIO_HAVE_IOPRIO_CLASS
#define ioprio_class(prio) 0
#define ioprio_value_is_class_rt(prio) (false)
#define IOPRIO_MIN_PRIO_CLASS 0
#define IOPRIO_MAX_PRIO_CLASS 0
#define ioprio_hint(prio) 0
#define IOPRIO_MIN_PRIO_HINT 0
#define IOPRIO_MAX_PRIO_HINT 0
#endif
#ifndef FIO_HAVE_IOPRIO
#define ioprio_value(prioclass, prio, priohint) (0)
#define ioprio(ioprio) 0
#define ioprio_set(which, who, prioclass, prio, priohint) (0)
#define IOPRIO_MIN_PRIO 0
#define IOPRIO_MAX_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
#define MAP_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_HAVE_MMAP_HUGE
#define MAP_HUGETLB 0
#endif
#ifndef FIO_O_NOATIME
#define FIO_O_NOATIME 0
#endif
#ifndef OS_RAND_MAX
#define OS_RAND_MAX RAND_MAX
#endif
#ifndef FIO_PREFERRED_ENGINE
#define FIO_PREFERRED_ENGINE "psync"
#endif
#ifndef FIO_OS_PATH_SEPARATOR
#define FIO_OS_PATH_SEPARATOR '/'
#endif
#ifndef FIO_PREFERRED_CLOCK_SOURCE
#ifdef CONFIG_CLOCK_GETTIME
#define FIO_PREFERRED_CLOCK_SOURCE CS_CGETTIME
#else
#define FIO_PREFERRED_CLOCK_SOURCE CS_GTOD
#endif
#endif
#ifndef CONFIG_SOCKLEN_T
typedef unsigned int socklen_t;
#endif
#ifndef FIO_OS_HAS_CTIME_R
#define os_ctime_r(x, y, z) (void) ctime_r((x), (y))
#endif
#ifdef FIO_USE_GENERIC_SWAP
static inline uint16_t fio_swap16(uint16_t val)
{
return (val << 8) | (val >> 8);
}
static inline uint32_t fio_swap32(uint32_t val)
{
val = ((val & 0xff00ff00UL) >> 8) | ((val & 0x00ff00ffUL) << 8);
return (val >> 16) | (val << 16);
}
static inline uint64_t fio_swap64(uint64_t val)
{
val = ((val & 0xff00ff00ff00ff00ULL) >> 8) |
((val & 0x00ff00ff00ff00ffULL) << 8);
val = ((val & 0xffff0000ffff0000ULL) >> 16) |
((val & 0x0000ffff0000ffffULL) << 16);
return (val >> 32) | (val << 32);
}
#endif
#ifndef FIO_HAVE_BYTEORDER_FUNCS
#ifdef CONFIG_LITTLE_ENDIAN
#define __be16_to_cpu(x) fio_swap16(x)
#define __be32_to_cpu(x) fio_swap32(x)
#define __be64_to_cpu(x) fio_swap64(x)
#define __le16_to_cpu(x) (x)
#define __le32_to_cpu(x) (x)
#define __le64_to_cpu(x) (x)
#define __cpu_to_be16(x) fio_swap16(x)
#define __cpu_to_be32(x) fio_swap32(x)
#define __cpu_to_be64(x) fio_swap64(x)
#define __cpu_to_le16(x) (x)
#define __cpu_to_le32(x) (x)
#define __cpu_to_le64(x) (x)
#else
#define __be16_to_cpu(x) (x)
#define __be32_to_cpu(x) (x)
#define __be64_to_cpu(x) (x)
#define __le16_to_cpu(x) fio_swap16(x)
#define __le32_to_cpu(x) fio_swap32(x)
#define __le64_to_cpu(x) fio_swap64(x)
#define __cpu_to_be16(x) (x)
#define __cpu_to_be32(x) (x)
#define __cpu_to_be64(x) (x)
#define __cpu_to_le16(x) fio_swap16(x)
#define __cpu_to_le32(x) fio_swap32(x)
#define __cpu_to_le64(x) fio_swap64(x)
#endif
#endif /* FIO_HAVE_BYTEORDER_FUNCS */
#ifdef FIO_INTERNAL
#define be16_to_cpu(val) ({ \
typecheck(uint16_t, val); \
__be16_to_cpu(val); \
})
#define be32_to_cpu(val) ({ \
typecheck(uint32_t, val); \
__be32_to_cpu(val); \
})
#define be64_to_cpu(val) ({ \
typecheck(uint64_t, val); \
__be64_to_cpu(val); \
})
#define le16_to_cpu(val) ({ \
typecheck(uint16_t, val); \
__le16_to_cpu(val); \
})
#define le32_to_cpu(val) ({ \
typecheck(uint32_t, val); \
__le32_to_cpu(val); \
})
#define le64_to_cpu(val) ({ \
typecheck(uint64_t, val); \
__le64_to_cpu(val); \
})
#endif
#define cpu_to_be16(val) ({ \
typecheck(uint16_t, val); \
__cpu_to_be16(val); \
})
#define cpu_to_be32(val) ({ \
typecheck(uint32_t, val); \
__cpu_to_be32(val); \
})
#define cpu_to_be64(val) ({ \
typecheck(uint64_t, val); \
__cpu_to_be64(val); \
})
#define cpu_to_le16(val) ({ \
typecheck(uint16_t, val); \
__cpu_to_le16(val); \
})
#define cpu_to_le32(val) ({ \
typecheck(uint32_t, val); \
__cpu_to_le32(val); \
})
#define cpu_to_le64(val) ({ \
typecheck(uint64_t, val); \
__cpu_to_le64(val); \
})
#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(struct fio_file *f, unsigned long long *bytes)
{
off_t end;
*bytes = 0;
end = lseek(f->fd, 0, SEEK_END);
if (end < 0)
return errno;
*bytes = end;
return 0;
}
#endif
#ifdef FIO_USE_GENERIC_INIT_RANDOM_STATE
static inline int init_random_seeds(uint64_t *rand_seeds, int size)
{
int fd;
fd = open("/dev/urandom", O_RDONLY);
if (fd == -1) {
return 1;
}
if (read(fd, rand_seeds, size) < size) {
close(fd);
return 1;
}
close(fd);
return 0;
}
#endif
#ifndef FIO_HAVE_FS_STAT
static inline unsigned long long get_fs_free_size(const char *path)
{
return 0;
}
#endif
#ifndef FIO_HAVE_CPU_CONF_SYSCONF
static inline unsigned int cpus_configured(void)
{
int nr_cpus = sysconf(_SC_NPROCESSORS_CONF);
return nr_cpus >= 1 ? nr_cpus : 1;
}
#endif
#ifndef CPU_COUNT
#ifdef FIO_HAVE_CPU_AFFINITY
static inline int CPU_COUNT(os_cpu_mask_t *mask)
{
int max_cpus = cpus_configured();
int nr_cpus, i;
for (i = 0, nr_cpus = 0; i < max_cpus; i++)
if (fio_cpu_isset(mask, i))
nr_cpus++;
return nr_cpus;
}
#endif
#endif
#ifndef FIO_HAVE_GETTID
#ifndef CONFIG_HAVE_GETTID
static inline int gettid(void)
{
return getpid();
}
#endif
#endif
#ifndef FIO_HAVE_SHM_ATTACH_REMOVED
static inline int shm_attach_to_open_removed(void)
{
return 0;
}
#endif
#ifndef FIO_HAVE_NATIVE_FALLOCATE
static inline bool fio_fallocate(struct fio_file *f, uint64_t offset, uint64_t len)
{
errno = ENOSYS;
return false;
}
#endif
#if defined(CONFIG_POSIX_FALLOCATE) || defined(FIO_HAVE_NATIVE_FALLOCATE)
# define FIO_HAVE_DEFAULT_FALLOCATE
#endif
#ifndef FIO_HAVE_CPU_HAS
static inline bool os_cpu_has(cpu_features feature)
{
return false;
}
#endif
#ifndef FIO_EMULATED_MKDIR_TWO
# define fio_mkdir(path, mode) mkdir(path, mode)
#endif
#ifdef _SC_CLK_TCK
static inline void os_clk_tck(long *clk_tck)
{
*clk_tck = sysconf(_SC_CLK_TCK);
}
#else
extern void os_clk_tck(long *clk_tck);
#endif
#endif /* FIO_OS_H */
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