[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 "../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

#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_HAVE_RAWBIND
#define fio_lookup_raw(dev, majdev, mindev)	1
#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 FIO_MAX_JOBS
#define FIO_MAX_JOBS		4096
#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 __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_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 __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_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 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_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(unsigned long *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
static inline int gettid(void)
{
	return getpid();
}
#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_ANY_FALLOCATE
#endif

#ifndef FIO_HAVE_CPU_HAS
static inline bool os_cpu_has(cpu_features feature)
{
	return false;
}
#endif

#endif
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>
a14ca44a	10
c473a9bd	11	#include "../arch/arch.h" /* IWYU pragma: export */
e39c0676	12	#include "../lib/types.h"
836fcc0f	13
cca84643 JA	14	enum {
	15	os_linux = 1,
	16	os_aix,
	17	os_freebsd,
	18	os_hpux,
	19	os_mac,
	20	os_netbsd,
3cd4c66f	21	os_openbsd,
cca84643 JA	22	os_solaris,
cca84643 JA	23	os_windows,
ec5c6b12	24	os_android,
239b2882	25	os_dragonfly,
cca84643 JA	26
	27	os_nr,
	28	};
	29
58828d07 SW	30	typedef enum {
	31	CPU_ARM64_CRC32C,
	32	} cpu_features;
	33
c473a9bd	34	/* IWYU pragma: begin_exports */
ec5c6b12 AC	35	#if defined(__ANDROID__)
	36	#include "os-android.h"
	37	#elif defined(__linux__)
ebac4655 JA	38	#include "os-linux.h"
	39	#elif defined(__FreeBSD__)
	40	#include "os-freebsd.h"
3cd4c66f J	41	#elif defined(__OpenBSD__)
3cd4c66f J	42	#include "os-openbsd.h"
7452440e YT	43	#elif defined(__NetBSD__)
7452440e YT	44	#include "os-netbsd.h"
2c0ecd28 JA	45	#elif defined(__sun__)
2c0ecd28 JA	46	#include "os-solaris.h"
2afd826b JA	47	#elif defined(__APPLE__)
2afd826b JA	48	#include "os-mac.h"
bf2e821a CC	49	#elif defined(_AIX)
bf2e821a CC	50	#include "os-aix.h"
c00a2289 JA	51	#elif defined(__hpux)
c00a2289 JA	52	#include "os-hpux.h"
93bcfd20	53	#elif defined(WIN32)
03e20d68	54	#include "os-windows.h"
239b2882 JA	55	#elif defined (__DragonFly__)
239b2882 JA	56	#include "os-dragonfly.h"
ebac4655 JA	57	#else
	58	#error "unsupported os"
	59	#endif
	60
67bf9823	61	#ifdef CONFIG_POSIXAIO
ebac4655	62	#include <aio.h>
e97c1442 JA	63	#ifndef FIO_OS_HAVE_AIOCB_TYPEDEF
	64	typedef struct aiocb os_aiocb_t;
	65	#endif
ebac4655 JA	66	#endif
ebac4655 JA	67
4feafb1e	68	#ifndef CONFIG_STRSEP
984f30c9	69	#include "../oslib/strsep.h"
5921e80c JA	70	#endif
5921e80c JA	71
5ad7be56	72	#ifndef CONFIG_STRLCAT
984f30c9	73	#include "../oslib/strlcat.h"
5ad7be56	74	#endif
c473a9bd	75	/* IWYU pragma: end_exports */
5ad7be56	76
8e239cae JA	77	#ifdef MSG_DONTWAIT
	78	#define OS_MSG_DONTWAIT MSG_DONTWAIT
	79	#endif
	80
4d8947de	81	#ifndef POSIX_FADV_DONTNEED
ebac4655 JA	82	#define POSIX_FADV_DONTNEED (0)
	83	#define POSIX_FADV_SEQUENTIAL (0)
	84	#define POSIX_FADV_RANDOM (0)
3ab9ebca	85	#define POSIX_FADV_NORMAL (0)
4d8947de	86	#endif
ebac4655 JA	87
ebac4655 JA	88	#ifndef FIO_HAVE_CPU_AFFINITY
be4ecfdf	89	#define fio_cpu_clear(mask, cpu) do { } while (0)
7452440e	90	typedef unsigned long os_cpu_mask_t;
3e55d40f TK	91
	92	static inline int fio_setaffinity(int pid, os_cpu_mask_t cpumask)
	93	{
	94	return 0;
	95	}
	96
2c6772e2 TK	97	static inline int fio_getaffinity(int pid, os_cpu_mask_t *cpumask)
	98	{
	99	return -1;
	100	}
	101
3e55d40f TK	102	static inline int fio_cpuset_exit(os_cpu_mask_t *mask)
	103	{
	104	return -1;
	105	}
	106
	107	static inline int fio_cpus_split(os_cpu_mask_t *mask, unsigned int cpu_index)
	108	{
	109	return 0;
	110	}
c2acfbac JA	111	#else
c2acfbac JA	112	extern int fio_cpus_split(os_cpu_mask_t *mask, unsigned int cpu);
ebac4655 JA	113	#endif
	114
	115	#ifndef FIO_HAVE_IOPRIO
28727df7	116	#define ioprio_set(which, who, prioclass, prio) (0)
ebac4655 JA	117	#endif
ebac4655 JA	118
2c0ecd28	119	#ifndef FIO_HAVE_ODIRECT
7d424763 JA	120	#define OS_O_DIRECT 0
	121	#else
	122	#define OS_O_DIRECT O_DIRECT
2c0ecd28 JA	123	#endif
2c0ecd28 JA	124
d01612f3 CM	125	#ifdef OS_O_ATOMIC
	126	#define FIO_O_ATOMIC OS_O_ATOMIC
	127	#else
	128	#define FIO_O_ATOMIC 0
	129	#endif
	130
74b025b0 JA	131	#ifndef FIO_HAVE_HUGETLB
74b025b0 JA	132	#define SHM_HUGETLB 0
d6dc02fb	133	#define MAP_HUGETLB 0
4d8947de	134	#ifndef FIO_HUGE_PAGE
74b025b0	135	#define FIO_HUGE_PAGE 0
4d8947de	136	#endif
74b025b0	137	#else
cb25df61	138	#ifndef FIO_HUGE_PAGE
ee0e0a71	139	#define FIO_HUGE_PAGE 4194304
74b025b0	140	#endif
cb25df61	141	#endif
74b025b0	142
39b93568 JA	143	#ifndef FIO_HAVE_MMAP_HUGE
	144	#define MAP_HUGETLB 0
	145	#endif
	146
5921e80c JA	147	#ifndef FIO_O_NOATIME
	148	#define FIO_O_NOATIME 0
	149	#endif
	150
dc873b6f JA	151	#ifndef OS_RAND_MAX
	152	#define OS_RAND_MAX RAND_MAX
	153	#endif
	154
07e5b264	155	#ifndef FIO_HAVE_RAWBIND
8cc7afa9	156	#define fio_lookup_raw(dev, majdev, mindev) 1
07e5b264 JA	157	#endif
07e5b264 JA	158
58483fa4	159	#ifndef FIO_PREFERRED_ENGINE
df96a39e	160	#define FIO_PREFERRED_ENGINE "psync"
58483fa4 JA	161	#endif
58483fa4 JA	162
b9fd788f	163	#ifndef FIO_OS_PATH_SEPARATOR
53a7af85	164	#define FIO_OS_PATH_SEPARATOR '/'
b9fd788f BC	165	#endif
b9fd788f BC	166
16de1bf9	167	#ifndef FIO_PREFERRED_CLOCK_SOURCE
86e53416	168	#ifdef CONFIG_CLOCK_GETTIME
16de1bf9	169	#define FIO_PREFERRED_CLOCK_SOURCE CS_CGETTIME
86e53416 BC	170	#else
	171	#define FIO_PREFERRED_CLOCK_SOURCE CS_GTOD
	172	#endif
16de1bf9 BC	173	#endif
16de1bf9 BC	174
fca70358	175	#ifndef FIO_MAX_JOBS
cab2472e	176	#define FIO_MAX_JOBS 4096
fca70358 JA	177	#endif
fca70358 JA	178
67bf9823 JA	179	#ifndef CONFIG_SOCKLEN_T
67bf9823 JA	180	typedef unsigned int socklen_t;
5ba13ea6 JA	181	#endif
5ba13ea6 JA	182
45054cbe	183	#ifndef FIO_OS_HAS_CTIME_R
1f81991e	184	#define os_ctime_r(x, y, z) (void) ctime_r((x), (y))
45054cbe SD	185	#endif
45054cbe SD	186
901ebe18	187	#ifdef FIO_USE_GENERIC_SWAP
9677bec3	188	static inline uint16_t fio_swap16(uint16_t val)
232f9b73 JA	189	{
	190	return (val << 8) \| (val >> 8);
	191	}
	192
901ebe18	193	static inline uint32_t fio_swap32(uint32_t val)
232f9b73 JA	194	{
	195	val = ((val & 0xff00ff00UL) >> 8) \| ((val & 0x00ff00ffUL) << 8);
	196
	197	return (val >> 16) \| (val << 16);
	198	}
	199
901ebe18	200	static inline uint64_t fio_swap64(uint64_t val)
232f9b73 JA	201	{
	202	val = ((val & 0xff00ff00ff00ff00ULL) >> 8) \|
	203	((val & 0x00ff00ff00ff00ffULL) << 8);
	204	val = ((val & 0xffff0000ffff0000ULL) >> 16) \|
	205	((val & 0x0000ffff0000ffffULL) << 16);
	206
	207	return (val >> 32) \| (val << 32);
	208	}
	209	#endif
	210
ec5c6b12	211	#ifndef FIO_HAVE_BYTEORDER_FUNCS
0dcebdf4	212	#ifdef CONFIG_LITTLE_ENDIAN
b747af64	213	#define __be64_to_cpu(x) fio_swap64(x)
8111092f JA	214	#define __le16_to_cpu(x) (x)
	215	#define __le32_to_cpu(x) (x)
	216	#define __le64_to_cpu(x) (x)
b747af64	217	#define __cpu_to_be64(x) fio_swap64(x)
8111092f JA	218	#define __cpu_to_le16(x) (x)
	219	#define __cpu_to_le32(x) (x)
	220	#define __cpu_to_le64(x) (x)
	221	#else
b747af64	222	#define __be64_to_cpu(x) (x)
8111092f JA	223	#define __le16_to_cpu(x) fio_swap16(x)
	224	#define __le32_to_cpu(x) fio_swap32(x)
	225	#define __le64_to_cpu(x) fio_swap64(x)
b747af64	226	#define __cpu_to_be64(x) (x)
8111092f JA	227	#define __cpu_to_le16(x) fio_swap16(x)
	228	#define __cpu_to_le32(x) fio_swap32(x)
	229	#define __cpu_to_le64(x) fio_swap64(x)
	230	#endif
ec5c6b12	231	#endif /* FIO_HAVE_BYTEORDER_FUNCS */
8111092f	232
0bbe46e7	233	#ifdef FIO_INTERNAL
b747af64 SW	234	#define be64_to_cpu(val) ({ \
	235	typecheck(uint64_t, val); \
	236	__be64_to_cpu(val); \
	237	})
8111092f	238	#define le16_to_cpu(val) ({ \
ff8039b7	239	typecheck(uint16_t, val); \
c46fda90	240	__le16_to_cpu(val); \
8111092f JA	241	})
8111092f JA	242	#define le32_to_cpu(val) ({ \
ff8039b7	243	typecheck(uint32_t, val); \
c46fda90	244	__le32_to_cpu(val); \
8111092f JA	245	})
8111092f JA	246	#define le64_to_cpu(val) ({ \
ff8039b7 JA	247	typecheck(uint64_t, val); \
ff8039b7 JA	248	__le64_to_cpu(val); \
8111092f	249	})
0bbe46e7 DG	250	#endif
0bbe46e7 DG	251
b747af64 SW	252	#define cpu_to_be64(val) ({ \
	253	typecheck(uint64_t, val); \
	254	__cpu_to_be64(val); \
	255	})
8111092f	256	#define cpu_to_le16(val) ({ \
ff8039b7	257	typecheck(uint16_t, val); \
c46fda90	258	__cpu_to_le16(val); \
8111092f JA	259	})
8111092f JA	260	#define cpu_to_le32(val) ({ \
ff8039b7	261	typecheck(uint32_t, val); \
c46fda90	262	__cpu_to_le32(val); \
8111092f JA	263	})
8111092f JA	264	#define cpu_to_le64(val) ({ \
ff8039b7	265	typecheck(uint64_t, val); \
c46fda90	266	__cpu_to_le64(val); \
8111092f JA	267	})
8111092f JA	268
eb7ccf38 JA	269	#define FIO_DEF_CL_SIZE 128
	270
	271	static inline int os_cache_line_size(void)
	272	{
	273	#ifdef FIO_HAVE_CL_SIZE
	274	int ret = arch_cache_line_size();
	275
	276	if (ret <= 0)
	277	return FIO_DEF_CL_SIZE;
	278
	279	return ret;
	280	#else
	281	return FIO_DEF_CL_SIZE;
	282	#endif
	283	}
	284
792d5517	285	#ifdef FIO_USE_GENERIC_BDEV_SIZE
ecc314ba	286	static inline int blockdev_size(struct fio_file f, unsigned long long bytes)
792d5517	287	{
3b2e1464	288	off_t end;
792d5517	289
3b2e1464 JA	290	*bytes = 0;
3b2e1464 JA	291
ecc314ba	292	end = lseek(f->fd, 0, SEEK_END);
792d5517 JA	293	if (end < 0)
	294	return errno;
	295
	296	*bytes = end;
	297	return 0;
	298	}
	299	#endif
	300
93bcfd20	301	#ifdef FIO_USE_GENERIC_INIT_RANDOM_STATE
1ed84d86	302	static inline int init_random_seeds(unsigned long *rand_seeds, int size)
93bcfd20 BC	303	{
	304	int fd;
	305
	306	fd = open("/dev/urandom", O_RDONLY);
	307	if (fd == -1) {
	308	return 1;
	309	}
	310
	311	if (read(fd, rand_seeds, size) < size) {
	312	close(fd);
	313	return 1;
	314	}
	315
	316	close(fd);
93bcfd20 BC	317	return 0;
	318	}
	319	#endif
	320
2e3bd4c2	321	#ifndef FIO_HAVE_FS_STAT
c08ad04c	322	static inline unsigned long long get_fs_free_size(const char *path)
2e3bd4c2 JA	323	{
	324	return 0;
	325	}
	326	#endif
	327
c00a2289 JA	328	#ifndef FIO_HAVE_CPU_ONLINE_SYSCONF
	329	static inline unsigned int cpus_online(void)
	330	{
	331	return sysconf(_SC_NPROCESSORS_ONLN);
	332	}
	333	#endif
	334
7221da37	335	#ifndef CPU_COUNT
6cf71c24 JA	336	#ifdef FIO_HAVE_CPU_AFFINITY
	337	static inline int CPU_COUNT(os_cpu_mask_t *mask)
	338	{
	339	int max_cpus = cpus_online();
	340	int nr_cpus, i;
	341
	342	for (i = 0, nr_cpus = 0; i < max_cpus; i++)
	343	if (fio_cpu_isset(mask, i))
	344	nr_cpus++;
	345
	346	return nr_cpus;
	347	}
	348	#endif
	349	#endif
	350
47f767c1 JA	351	#ifndef FIO_HAVE_GETTID
	352	static inline int gettid(void)
	353	{
	354	return getpid();
	355	}
	356	#endif
	357
0cfe2089 TK	358	#ifndef FIO_HAVE_SHM_ATTACH_REMOVED
	359	static inline int shm_attach_to_open_removed(void)
	360	{
	361	return 0;
	362	}
	363	#endif
	364
2c3e17be SW	365	#ifndef FIO_HAVE_NATIVE_FALLOCATE
	366	static inline bool fio_fallocate(struct fio_file *f, uint64_t offset, uint64_t len)
	367	{
	368	errno = ENOSYS;
	369	return false;
	370	}
	371	#endif
	372
cbbdf1c8 SW	373	#if defined(CONFIG_POSIX_FALLOCATE) \|\| defined(FIO_HAVE_NATIVE_FALLOCATE)
	374	# define FIO_HAVE_ANY_FALLOCATE
	375	#endif
	376
58828d07 SW	377	#ifndef FIO_HAVE_CPU_HAS
	378	static inline bool os_cpu_has(cpu_features feature)
	379	{
	380	return false;
	381	}
	382	#endif
	383
ebac4655	384	#endif