[fio.git] / os / os.h

#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_nr,
};

typedef enum {
        CPU_ARM64_CRC32C,
} cpu_features;

/* IWYU pragma: begin_exports */
#if defined(__ANDROID__)
#include "os-android.h"
#elif defined(__linux__)
#include "os-linux.h"
#elif defined(__FreeBSD__)
#include "os-freebsd.h"
#elif defined(__OpenBSD__)
#include "os-openbsd.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
#define ioprio_set(which, who, prioclass, prio)	(0)
#endif

#ifndef FIO_HAVE_ODIRECT
#define OS_O_DIRECT			0
#else
#define OS_O_DIRECT			O_DIRECT
#endif

#ifdef OS_O_ATOMIC
#define FIO_O_ATOMIC			OS_O_ATOMIC
#else
#define FIO_O_ATOMIC			0
#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_ONLINE_SYSCONF
static inline unsigned int cpus_online(void)
{
	return sysconf(_SC_NPROCESSORS_ONLN);
}
#endif

#ifndef CPU_COUNT
#ifdef FIO_HAVE_CPU_AFFINITY
static inline int CPU_COUNT(os_cpu_mask_t *mask)
{
	int max_cpus = cpus_online();
	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

#endif /* FIO_OS_H */
Commit	Line	Data
ebac4655 JA	1	#ifndef FIO_OS_H
	2	#define FIO_OS_H
	3
a14ca44a	4	#include <sys/types.h>
203913ea	5	#include <sys/socket.h>
93bcfd20	6	#include <fcntl.h>
03e20d68	7	#include <pthread.h>
a14ca44a	8	#include <unistd.h>
ecc314ba	9	#include <stdlib.h>
30bec59e	10	#include <errno.h>
a14ca44a	11
c473a9bd	12	#include "../arch/arch.h" /* IWYU pragma: export */
e39c0676	13	#include "../lib/types.h"
836fcc0f	14
cca84643 JA	15	enum {
	16	os_linux = 1,
	17	os_aix,
	18	os_freebsd,
	19	os_hpux,
	20	os_mac,
	21	os_netbsd,
3cd4c66f	22	os_openbsd,
cca84643 JA	23	os_solaris,
cca84643 JA	24	os_windows,
ec5c6b12	25	os_android,
239b2882	26	os_dragonfly,
cca84643 JA	27
	28	os_nr,
	29	};
	30
58828d07 SW	31	typedef enum {
	32	CPU_ARM64_CRC32C,
	33	} cpu_features;
	34
c473a9bd	35	/* IWYU pragma: begin_exports */
ec5c6b12 AC	36	#if defined(__ANDROID__)
	37	#include "os-android.h"
	38	#elif defined(__linux__)
ebac4655 JA	39	#include "os-linux.h"
	40	#elif defined(__FreeBSD__)
	41	#include "os-freebsd.h"
3cd4c66f J	42	#elif defined(__OpenBSD__)
3cd4c66f J	43	#include "os-openbsd.h"
7452440e YT	44	#elif defined(__NetBSD__)
7452440e YT	45	#include "os-netbsd.h"
2c0ecd28 JA	46	#elif defined(__sun__)
2c0ecd28 JA	47	#include "os-solaris.h"
2afd826b JA	48	#elif defined(__APPLE__)
2afd826b JA	49	#include "os-mac.h"
bf2e821a CC	50	#elif defined(_AIX)
bf2e821a CC	51	#include "os-aix.h"
c00a2289 JA	52	#elif defined(__hpux)
c00a2289 JA	53	#include "os-hpux.h"
93bcfd20	54	#elif defined(WIN32)
03e20d68	55	#include "os-windows.h"
239b2882 JA	56	#elif defined (__DragonFly__)
239b2882 JA	57	#include "os-dragonfly.h"
ebac4655 JA	58	#else
	59	#error "unsupported os"
	60	#endif
	61
30bec59e JA	62	#ifndef EDQUOT
	63	#define EDQUOT EIO
	64	#endif
	65
67bf9823	66	#ifdef CONFIG_POSIXAIO
ebac4655	67	#include <aio.h>
e97c1442 JA	68	#ifndef FIO_OS_HAVE_AIOCB_TYPEDEF
	69	typedef struct aiocb os_aiocb_t;
	70	#endif
ebac4655 JA	71	#endif
ebac4655 JA	72
4feafb1e	73	#ifndef CONFIG_STRSEP
984f30c9	74	#include "../oslib/strsep.h"
5921e80c JA	75	#endif
5921e80c JA	76
5ad7be56	77	#ifndef CONFIG_STRLCAT
984f30c9	78	#include "../oslib/strlcat.h"
5ad7be56	79	#endif
c473a9bd	80	/* IWYU pragma: end_exports */
5ad7be56	81
8e239cae JA	82	#ifdef MSG_DONTWAIT
	83	#define OS_MSG_DONTWAIT MSG_DONTWAIT
	84	#endif
	85
4d8947de	86	#ifndef POSIX_FADV_DONTNEED
ebac4655 JA	87	#define POSIX_FADV_DONTNEED (0)
	88	#define POSIX_FADV_SEQUENTIAL (0)
	89	#define POSIX_FADV_RANDOM (0)
3ab9ebca	90	#define POSIX_FADV_NORMAL (0)
4d8947de	91	#endif
ebac4655 JA	92
ebac4655 JA	93	#ifndef FIO_HAVE_CPU_AFFINITY
be4ecfdf	94	#define fio_cpu_clear(mask, cpu) do { } while (0)
7452440e	95	typedef unsigned long os_cpu_mask_t;
3e55d40f TK	96
	97	static inline int fio_setaffinity(int pid, os_cpu_mask_t cpumask)
	98	{
	99	return 0;
	100	}
	101
2c6772e2 TK	102	static inline int fio_getaffinity(int pid, os_cpu_mask_t *cpumask)
	103	{
	104	return -1;
	105	}
	106
3e55d40f TK	107	static inline int fio_cpuset_exit(os_cpu_mask_t *mask)
	108	{
	109	return -1;
	110	}
	111
	112	static inline int fio_cpus_split(os_cpu_mask_t *mask, unsigned int cpu_index)
	113	{
	114	return 0;
	115	}
c2acfbac JA	116	#else
c2acfbac JA	117	extern int fio_cpus_split(os_cpu_mask_t *mask, unsigned int cpu);
ebac4655 JA	118	#endif
	119
	120	#ifndef FIO_HAVE_IOPRIO
28727df7	121	#define ioprio_set(which, who, prioclass, prio) (0)
ebac4655 JA	122	#endif
ebac4655 JA	123
2c0ecd28	124	#ifndef FIO_HAVE_ODIRECT
7d424763 JA	125	#define OS_O_DIRECT 0
	126	#else
	127	#define OS_O_DIRECT O_DIRECT
2c0ecd28 JA	128	#endif
2c0ecd28 JA	129
d01612f3 CM	130	#ifdef OS_O_ATOMIC
	131	#define FIO_O_ATOMIC OS_O_ATOMIC
	132	#else
	133	#define FIO_O_ATOMIC 0
	134	#endif
	135
74b025b0 JA	136	#ifndef FIO_HAVE_HUGETLB
74b025b0 JA	137	#define SHM_HUGETLB 0
d6dc02fb	138	#define MAP_HUGETLB 0
4d8947de	139	#ifndef FIO_HUGE_PAGE
74b025b0	140	#define FIO_HUGE_PAGE 0
4d8947de	141	#endif
74b025b0	142	#else
cb25df61	143	#ifndef FIO_HUGE_PAGE
ee0e0a71	144	#define FIO_HUGE_PAGE 4194304
74b025b0	145	#endif
cb25df61	146	#endif
74b025b0	147
39b93568 JA	148	#ifndef FIO_HAVE_MMAP_HUGE
	149	#define MAP_HUGETLB 0
	150	#endif
	151
5921e80c JA	152	#ifndef FIO_O_NOATIME
	153	#define FIO_O_NOATIME 0
	154	#endif
	155
dc873b6f JA	156	#ifndef OS_RAND_MAX
	157	#define OS_RAND_MAX RAND_MAX
	158	#endif
	159
58483fa4	160	#ifndef FIO_PREFERRED_ENGINE
df96a39e	161	#define FIO_PREFERRED_ENGINE "psync"
58483fa4 JA	162	#endif
58483fa4 JA	163
b9fd788f	164	#ifndef FIO_OS_PATH_SEPARATOR
53a7af85	165	#define FIO_OS_PATH_SEPARATOR '/'
b9fd788f BC	166	#endif
b9fd788f BC	167
16de1bf9	168	#ifndef FIO_PREFERRED_CLOCK_SOURCE
86e53416	169	#ifdef CONFIG_CLOCK_GETTIME
16de1bf9	170	#define FIO_PREFERRED_CLOCK_SOURCE CS_CGETTIME
86e53416 BC	171	#else
	172	#define FIO_PREFERRED_CLOCK_SOURCE CS_GTOD
	173	#endif
16de1bf9 BC	174	#endif
16de1bf9 BC	175
67bf9823 JA	176	#ifndef CONFIG_SOCKLEN_T
67bf9823 JA	177	typedef unsigned int socklen_t;
5ba13ea6 JA	178	#endif
5ba13ea6 JA	179
45054cbe	180	#ifndef FIO_OS_HAS_CTIME_R
1f81991e	181	#define os_ctime_r(x, y, z) (void) ctime_r((x), (y))
45054cbe SD	182	#endif
45054cbe SD	183
901ebe18	184	#ifdef FIO_USE_GENERIC_SWAP
9677bec3	185	static inline uint16_t fio_swap16(uint16_t val)
232f9b73 JA	186	{
	187	return (val << 8) \| (val >> 8);
	188	}
	189
901ebe18	190	static inline uint32_t fio_swap32(uint32_t val)
232f9b73 JA	191	{
	192	val = ((val & 0xff00ff00UL) >> 8) \| ((val & 0x00ff00ffUL) << 8);
	193
	194	return (val >> 16) \| (val << 16);
	195	}
	196
901ebe18	197	static inline uint64_t fio_swap64(uint64_t val)
232f9b73 JA	198	{
	199	val = ((val & 0xff00ff00ff00ff00ULL) >> 8) \|
	200	((val & 0x00ff00ff00ff00ffULL) << 8);
	201	val = ((val & 0xffff0000ffff0000ULL) >> 16) \|
	202	((val & 0x0000ffff0000ffffULL) << 16);
	203
	204	return (val >> 32) \| (val << 32);
	205	}
	206	#endif
	207
ec5c6b12	208	#ifndef FIO_HAVE_BYTEORDER_FUNCS
0dcebdf4	209	#ifdef CONFIG_LITTLE_ENDIAN
a824149a DF	210	#define __be16_to_cpu(x) fio_swap16(x)
a824149a DF	211	#define __be32_to_cpu(x) fio_swap32(x)
b747af64	212	#define __be64_to_cpu(x) fio_swap64(x)
8111092f JA	213	#define __le16_to_cpu(x) (x)
	214	#define __le32_to_cpu(x) (x)
	215	#define __le64_to_cpu(x) (x)
a824149a DF	216	#define __cpu_to_be16(x) fio_swap16(x)
a824149a DF	217	#define __cpu_to_be32(x) fio_swap32(x)
b747af64	218	#define __cpu_to_be64(x) fio_swap64(x)
8111092f JA	219	#define __cpu_to_le16(x) (x)
	220	#define __cpu_to_le32(x) (x)
	221	#define __cpu_to_le64(x) (x)
	222	#else
a824149a DF	223	#define __be16_to_cpu(x) (x)
a824149a DF	224	#define __be32_to_cpu(x) (x)
b747af64	225	#define __be64_to_cpu(x) (x)
8111092f JA	226	#define __le16_to_cpu(x) fio_swap16(x)
	227	#define __le32_to_cpu(x) fio_swap32(x)
	228	#define __le64_to_cpu(x) fio_swap64(x)
a824149a DF	229	#define __cpu_to_be16(x) (x)
a824149a DF	230	#define __cpu_to_be32(x) (x)
b747af64	231	#define __cpu_to_be64(x) (x)
8111092f JA	232	#define __cpu_to_le16(x) fio_swap16(x)
	233	#define __cpu_to_le32(x) fio_swap32(x)
	234	#define __cpu_to_le64(x) fio_swap64(x)
	235	#endif
ec5c6b12	236	#endif /* FIO_HAVE_BYTEORDER_FUNCS */
8111092f	237
0bbe46e7	238	#ifdef FIO_INTERNAL
a824149a DF	239	#define be16_to_cpu(val) ({ \
	240	typecheck(uint16_t, val); \
	241	__be16_to_cpu(val); \
	242	})
	243	#define be32_to_cpu(val) ({ \
	244	typecheck(uint32_t, val); \
	245	__be32_to_cpu(val); \
	246	})
b747af64 SW	247	#define be64_to_cpu(val) ({ \
	248	typecheck(uint64_t, val); \
	249	__be64_to_cpu(val); \
	250	})
8111092f	251	#define le16_to_cpu(val) ({ \
ff8039b7	252	typecheck(uint16_t, val); \
c46fda90	253	__le16_to_cpu(val); \
8111092f JA	254	})
8111092f JA	255	#define le32_to_cpu(val) ({ \
ff8039b7	256	typecheck(uint32_t, val); \
c46fda90	257	__le32_to_cpu(val); \
8111092f JA	258	})
8111092f JA	259	#define le64_to_cpu(val) ({ \
ff8039b7 JA	260	typecheck(uint64_t, val); \
ff8039b7 JA	261	__le64_to_cpu(val); \
8111092f	262	})
0bbe46e7 DG	263	#endif
0bbe46e7 DG	264
a824149a DF	265	#define cpu_to_be16(val) ({ \
	266	typecheck(uint16_t, val); \
	267	__cpu_to_be16(val); \
	268	})
	269	#define cpu_to_be32(val) ({ \
	270	typecheck(uint32_t, val); \
	271	__cpu_to_be32(val); \
	272	})
b747af64 SW	273	#define cpu_to_be64(val) ({ \
	274	typecheck(uint64_t, val); \
	275	__cpu_to_be64(val); \
	276	})
8111092f	277	#define cpu_to_le16(val) ({ \
ff8039b7	278	typecheck(uint16_t, val); \
c46fda90	279	__cpu_to_le16(val); \
8111092f JA	280	})
8111092f JA	281	#define cpu_to_le32(val) ({ \
ff8039b7	282	typecheck(uint32_t, val); \
c46fda90	283	__cpu_to_le32(val); \
8111092f JA	284	})
8111092f JA	285	#define cpu_to_le64(val) ({ \
ff8039b7	286	typecheck(uint64_t, val); \
c46fda90	287	__cpu_to_le64(val); \
8111092f JA	288	})
8111092f JA	289
eb7ccf38 JA	290	#define FIO_DEF_CL_SIZE 128
	291
	292	static inline int os_cache_line_size(void)
	293	{
	294	#ifdef FIO_HAVE_CL_SIZE
	295	int ret = arch_cache_line_size();
	296
	297	if (ret <= 0)
	298	return FIO_DEF_CL_SIZE;
	299
	300	return ret;
	301	#else
	302	return FIO_DEF_CL_SIZE;
	303	#endif
	304	}
	305
792d5517	306	#ifdef FIO_USE_GENERIC_BDEV_SIZE
ecc314ba	307	static inline int blockdev_size(struct fio_file f, unsigned long long bytes)
792d5517	308	{
3b2e1464	309	off_t end;
792d5517	310
3b2e1464 JA	311	*bytes = 0;
3b2e1464 JA	312
ecc314ba	313	end = lseek(f->fd, 0, SEEK_END);
792d5517 JA	314	if (end < 0)
	315	return errno;
	316
	317	*bytes = end;
	318	return 0;
	319	}
	320	#endif
	321
93bcfd20	322	#ifdef FIO_USE_GENERIC_INIT_RANDOM_STATE
9781c080	323	static inline int init_random_seeds(uint64_t *rand_seeds, int size)
93bcfd20 BC	324	{
	325	int fd;
	326
	327	fd = open("/dev/urandom", O_RDONLY);
	328	if (fd == -1) {
	329	return 1;
	330	}
	331
	332	if (read(fd, rand_seeds, size) < size) {
	333	close(fd);
	334	return 1;
	335	}
	336
	337	close(fd);
93bcfd20 BC	338	return 0;
	339	}
	340	#endif
	341
2e3bd4c2	342	#ifndef FIO_HAVE_FS_STAT
c08ad04c	343	static inline unsigned long long get_fs_free_size(const char *path)
2e3bd4c2 JA	344	{
	345	return 0;
	346	}
	347	#endif
	348
c00a2289 JA	349	#ifndef FIO_HAVE_CPU_ONLINE_SYSCONF
	350	static inline unsigned int cpus_online(void)
	351	{
	352	return sysconf(_SC_NPROCESSORS_ONLN);
	353	}
	354	#endif
	355
7221da37	356	#ifndef CPU_COUNT
6cf71c24 JA	357	#ifdef FIO_HAVE_CPU_AFFINITY
	358	static inline int CPU_COUNT(os_cpu_mask_t *mask)
	359	{
	360	int max_cpus = cpus_online();
	361	int nr_cpus, i;
	362
	363	for (i = 0, nr_cpus = 0; i < max_cpus; i++)
	364	if (fio_cpu_isset(mask, i))
	365	nr_cpus++;
	366
	367	return nr_cpus;
	368	}
	369	#endif
	370	#endif
	371
47f767c1	372	#ifndef FIO_HAVE_GETTID
de5ed0e4	373	#ifndef CONFIG_HAVE_GETTID
47f767c1 JA	374	static inline int gettid(void)
	375	{
	376	return getpid();
	377	}
	378	#endif
de5ed0e4	379	#endif
47f767c1	380
0cfe2089 TK	381	#ifndef FIO_HAVE_SHM_ATTACH_REMOVED
	382	static inline int shm_attach_to_open_removed(void)
	383	{
	384	return 0;
	385	}
	386	#endif
	387
2c3e17be SW	388	#ifndef FIO_HAVE_NATIVE_FALLOCATE
	389	static inline bool fio_fallocate(struct fio_file *f, uint64_t offset, uint64_t len)
	390	{
	391	errno = ENOSYS;
	392	return false;
	393	}
	394	#endif
	395
cbbdf1c8	396	#if defined(CONFIG_POSIX_FALLOCATE) \|\| defined(FIO_HAVE_NATIVE_FALLOCATE)
38ca5f03	397	# define FIO_HAVE_DEFAULT_FALLOCATE
cbbdf1c8 SW	398	#endif
cbbdf1c8 SW	399
58828d07 SW	400	#ifndef FIO_HAVE_CPU_HAS
	401	static inline bool os_cpu_has(cpu_features feature)
	402	{
	403	return false;
	404	}
	405	#endif
	406
df18600f SW	407	#ifndef FIO_EMULATED_MKDIR_TWO
df18600f SW	408	# define fio_mkdir(path, mode) mkdir(path, mode)
ebac4655	409	#endif
df18600f SW	410
df18600f SW	411	#endif /* FIO_OS_H */