[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"
#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,
};

#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

#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_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

#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

#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
836fcc0f	11	#include "../arch/arch.h"
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
ec5c6b12 AC	30	#if defined(__ANDROID__)
	31	#include "os-android.h"
	32	#elif defined(__linux__)
ebac4655 JA	33	#include "os-linux.h"
	34	#elif defined(__FreeBSD__)
	35	#include "os-freebsd.h"
3cd4c66f J	36	#elif defined(__OpenBSD__)
3cd4c66f J	37	#include "os-openbsd.h"
7452440e YT	38	#elif defined(__NetBSD__)
7452440e YT	39	#include "os-netbsd.h"
2c0ecd28 JA	40	#elif defined(__sun__)
2c0ecd28 JA	41	#include "os-solaris.h"
2afd826b JA	42	#elif defined(__APPLE__)
2afd826b JA	43	#include "os-mac.h"
bf2e821a CC	44	#elif defined(_AIX)
bf2e821a CC	45	#include "os-aix.h"
c00a2289 JA	46	#elif defined(__hpux)
c00a2289 JA	47	#include "os-hpux.h"
93bcfd20	48	#elif defined(WIN32)
03e20d68	49	#include "os-windows.h"
239b2882 JA	50	#elif defined (__DragonFly__)
239b2882 JA	51	#include "os-dragonfly.h"
ebac4655 JA	52	#else
	53	#error "unsupported os"
	54	#endif
	55
67bf9823	56	#ifdef CONFIG_POSIXAIO
ebac4655	57	#include <aio.h>
e97c1442 JA	58	#ifndef FIO_OS_HAVE_AIOCB_TYPEDEF
	59	typedef struct aiocb os_aiocb_t;
	60	#endif
ebac4655 JA	61	#endif
ebac4655 JA	62
4feafb1e	63	#ifndef CONFIG_STRSEP
984f30c9	64	#include "../oslib/strsep.h"
5921e80c JA	65	#endif
5921e80c JA	66
5ad7be56	67	#ifndef CONFIG_STRLCAT
984f30c9	68	#include "../oslib/strlcat.h"
5ad7be56 KD	69	#endif
5ad7be56 KD	70
8e239cae JA	71	#ifdef MSG_DONTWAIT
	72	#define OS_MSG_DONTWAIT MSG_DONTWAIT
	73	#endif
	74
4d8947de	75	#ifndef POSIX_FADV_DONTNEED
ebac4655 JA	76	#define POSIX_FADV_DONTNEED (0)
	77	#define POSIX_FADV_SEQUENTIAL (0)
	78	#define POSIX_FADV_RANDOM (0)
3ab9ebca	79	#define POSIX_FADV_NORMAL (0)
4d8947de	80	#endif
ebac4655 JA	81
ebac4655 JA	82	#ifndef FIO_HAVE_CPU_AFFINITY
be4ecfdf	83	#define fio_cpu_clear(mask, cpu) do { } while (0)
7452440e	84	typedef unsigned long os_cpu_mask_t;
3e55d40f TK	85
	86	static inline int fio_setaffinity(int pid, os_cpu_mask_t cpumask)
	87	{
	88	return 0;
	89	}
	90
2c6772e2 TK	91	static inline int fio_getaffinity(int pid, os_cpu_mask_t *cpumask)
	92	{
	93	return -1;
	94	}
	95
3e55d40f TK	96	static inline int fio_cpuset_exit(os_cpu_mask_t *mask)
	97	{
	98	return -1;
	99	}
	100
	101	static inline int fio_cpus_split(os_cpu_mask_t *mask, unsigned int cpu_index)
	102	{
	103	return 0;
	104	}
c2acfbac JA	105	#else
c2acfbac JA	106	extern int fio_cpus_split(os_cpu_mask_t *mask, unsigned int cpu);
ebac4655 JA	107	#endif
	108
	109	#ifndef FIO_HAVE_IOPRIO
28727df7	110	#define ioprio_set(which, who, prioclass, prio) (0)
ebac4655 JA	111	#endif
ebac4655 JA	112
2c0ecd28	113	#ifndef FIO_HAVE_ODIRECT
7d424763 JA	114	#define OS_O_DIRECT 0
	115	#else
	116	#define OS_O_DIRECT O_DIRECT
2c0ecd28 JA	117	#endif
2c0ecd28 JA	118
d01612f3 CM	119	#ifdef OS_O_ATOMIC
	120	#define FIO_O_ATOMIC OS_O_ATOMIC
	121	#else
	122	#define FIO_O_ATOMIC 0
	123	#endif
	124
74b025b0 JA	125	#ifndef FIO_HAVE_HUGETLB
74b025b0 JA	126	#define SHM_HUGETLB 0
d6dc02fb	127	#define MAP_HUGETLB 0
4d8947de	128	#ifndef FIO_HUGE_PAGE
74b025b0	129	#define FIO_HUGE_PAGE 0
4d8947de	130	#endif
74b025b0	131	#else
cb25df61	132	#ifndef FIO_HUGE_PAGE
ee0e0a71	133	#define FIO_HUGE_PAGE 4194304
74b025b0	134	#endif
cb25df61	135	#endif
74b025b0	136
39b93568 JA	137	#ifndef FIO_HAVE_MMAP_HUGE
	138	#define MAP_HUGETLB 0
	139	#endif
	140
5921e80c JA	141	#ifndef FIO_O_NOATIME
	142	#define FIO_O_NOATIME 0
	143	#endif
	144
dc873b6f JA	145	#ifndef OS_RAND_MAX
	146	#define OS_RAND_MAX RAND_MAX
	147	#endif
	148
07e5b264	149	#ifndef FIO_HAVE_RAWBIND
8cc7afa9	150	#define fio_lookup_raw(dev, majdev, mindev) 1
07e5b264 JA	151	#endif
07e5b264 JA	152
58483fa4	153	#ifndef FIO_PREFERRED_ENGINE
df96a39e	154	#define FIO_PREFERRED_ENGINE "psync"
58483fa4 JA	155	#endif
58483fa4 JA	156
b9fd788f	157	#ifndef FIO_OS_PATH_SEPARATOR
53a7af85	158	#define FIO_OS_PATH_SEPARATOR '/'
b9fd788f BC	159	#endif
b9fd788f BC	160
16de1bf9	161	#ifndef FIO_PREFERRED_CLOCK_SOURCE
86e53416	162	#ifdef CONFIG_CLOCK_GETTIME
16de1bf9	163	#define FIO_PREFERRED_CLOCK_SOURCE CS_CGETTIME
86e53416 BC	164	#else
	165	#define FIO_PREFERRED_CLOCK_SOURCE CS_GTOD
	166	#endif
16de1bf9 BC	167	#endif
16de1bf9 BC	168
fca70358	169	#ifndef FIO_MAX_JOBS
cab2472e	170	#define FIO_MAX_JOBS 4096
fca70358 JA	171	#endif
fca70358 JA	172
67bf9823 JA	173	#ifndef CONFIG_SOCKLEN_T
67bf9823 JA	174	typedef unsigned int socklen_t;
5ba13ea6 JA	175	#endif
5ba13ea6 JA	176
45054cbe	177	#ifndef FIO_OS_HAS_CTIME_R
1f81991e	178	#define os_ctime_r(x, y, z) (void) ctime_r((x), (y))
45054cbe SD	179	#endif
45054cbe SD	180
901ebe18	181	#ifdef FIO_USE_GENERIC_SWAP
9677bec3	182	static inline uint16_t fio_swap16(uint16_t val)
232f9b73 JA	183	{
	184	return (val << 8) \| (val >> 8);
	185	}
	186
901ebe18	187	static inline uint32_t fio_swap32(uint32_t val)
232f9b73 JA	188	{
	189	val = ((val & 0xff00ff00UL) >> 8) \| ((val & 0x00ff00ffUL) << 8);
	190
	191	return (val >> 16) \| (val << 16);
	192	}
	193
901ebe18	194	static inline uint64_t fio_swap64(uint64_t val)
232f9b73 JA	195	{
	196	val = ((val & 0xff00ff00ff00ff00ULL) >> 8) \|
	197	((val & 0x00ff00ff00ff00ffULL) << 8);
	198	val = ((val & 0xffff0000ffff0000ULL) >> 16) \|
	199	((val & 0x0000ffff0000ffffULL) << 16);
	200
	201	return (val >> 32) \| (val << 32);
	202	}
	203	#endif
	204
ec5c6b12	205	#ifndef FIO_HAVE_BYTEORDER_FUNCS
0dcebdf4	206	#ifdef CONFIG_LITTLE_ENDIAN
b747af64	207	#define __be64_to_cpu(x) fio_swap64(x)
8111092f JA	208	#define __le16_to_cpu(x) (x)
	209	#define __le32_to_cpu(x) (x)
	210	#define __le64_to_cpu(x) (x)
b747af64	211	#define __cpu_to_be64(x) fio_swap64(x)
8111092f JA	212	#define __cpu_to_le16(x) (x)
	213	#define __cpu_to_le32(x) (x)
	214	#define __cpu_to_le64(x) (x)
	215	#else
b747af64	216	#define __be64_to_cpu(x) (x)
8111092f JA	217	#define __le16_to_cpu(x) fio_swap16(x)
	218	#define __le32_to_cpu(x) fio_swap32(x)
	219	#define __le64_to_cpu(x) fio_swap64(x)
b747af64	220	#define __cpu_to_be64(x) (x)
8111092f JA	221	#define __cpu_to_le16(x) fio_swap16(x)
	222	#define __cpu_to_le32(x) fio_swap32(x)
	223	#define __cpu_to_le64(x) fio_swap64(x)
	224	#endif
ec5c6b12	225	#endif /* FIO_HAVE_BYTEORDER_FUNCS */
8111092f	226
0bbe46e7	227	#ifdef FIO_INTERNAL
b747af64 SW	228	#define be64_to_cpu(val) ({ \
	229	typecheck(uint64_t, val); \
	230	__be64_to_cpu(val); \
	231	})
8111092f	232	#define le16_to_cpu(val) ({ \
ff8039b7	233	typecheck(uint16_t, val); \
c46fda90	234	__le16_to_cpu(val); \
8111092f JA	235	})
8111092f JA	236	#define le32_to_cpu(val) ({ \
ff8039b7	237	typecheck(uint32_t, val); \
c46fda90	238	__le32_to_cpu(val); \
8111092f JA	239	})
8111092f JA	240	#define le64_to_cpu(val) ({ \
ff8039b7 JA	241	typecheck(uint64_t, val); \
ff8039b7 JA	242	__le64_to_cpu(val); \
8111092f	243	})
0bbe46e7 DG	244	#endif
0bbe46e7 DG	245
b747af64 SW	246	#define cpu_to_be64(val) ({ \
	247	typecheck(uint64_t, val); \
	248	__cpu_to_be64(val); \
	249	})
8111092f	250	#define cpu_to_le16(val) ({ \
ff8039b7	251	typecheck(uint16_t, val); \
c46fda90	252	__cpu_to_le16(val); \
8111092f JA	253	})
8111092f JA	254	#define cpu_to_le32(val) ({ \
ff8039b7	255	typecheck(uint32_t, val); \
c46fda90	256	__cpu_to_le32(val); \
8111092f JA	257	})
8111092f JA	258	#define cpu_to_le64(val) ({ \
ff8039b7	259	typecheck(uint64_t, val); \
c46fda90	260	__cpu_to_le64(val); \
8111092f JA	261	})
8111092f JA	262
eb7ccf38 JA	263	#define FIO_DEF_CL_SIZE 128
	264
	265	static inline int os_cache_line_size(void)
	266	{
	267	#ifdef FIO_HAVE_CL_SIZE
	268	int ret = arch_cache_line_size();
	269
	270	if (ret <= 0)
	271	return FIO_DEF_CL_SIZE;
	272
	273	return ret;
	274	#else
	275	return FIO_DEF_CL_SIZE;
	276	#endif
	277	}
	278
792d5517	279	#ifdef FIO_USE_GENERIC_BDEV_SIZE
ecc314ba	280	static inline int blockdev_size(struct fio_file f, unsigned long long bytes)
792d5517	281	{
3b2e1464	282	off_t end;
792d5517	283
3b2e1464 JA	284	*bytes = 0;
3b2e1464 JA	285
ecc314ba	286	end = lseek(f->fd, 0, SEEK_END);
792d5517 JA	287	if (end < 0)
	288	return errno;
	289
	290	*bytes = end;
	291	return 0;
	292	}
	293	#endif
	294
53531370 JA	295	#ifdef FIO_USE_GENERIC_RAND
	296	typedef unsigned int os_random_state_t;
	297
	298	static inline void os_random_seed(unsigned long seed, os_random_state_t *rs)
	299	{
	300	srand(seed);
	301	}
	302
	303	static inline long os_random_long(os_random_state_t *rs)
	304	{
	305	long val;
	306
	307	val = rand_r(rs);
	308	return val;
	309	}
	310	#endif
	311
93bcfd20	312	#ifdef FIO_USE_GENERIC_INIT_RANDOM_STATE
1ed84d86	313	static inline int init_random_seeds(unsigned long *rand_seeds, int size)
93bcfd20 BC	314	{
	315	int fd;
	316
	317	fd = open("/dev/urandom", O_RDONLY);
	318	if (fd == -1) {
	319	return 1;
	320	}
	321
	322	if (read(fd, rand_seeds, size) < size) {
	323	close(fd);
	324	return 1;
	325	}
	326
	327	close(fd);
93bcfd20 BC	328	return 0;
	329	}
	330	#endif
	331
2e3bd4c2	332	#ifndef FIO_HAVE_FS_STAT
c08ad04c	333	static inline unsigned long long get_fs_free_size(const char *path)
2e3bd4c2 JA	334	{
	335	return 0;
	336	}
	337	#endif
	338
c00a2289 JA	339	#ifndef FIO_HAVE_CPU_ONLINE_SYSCONF
	340	static inline unsigned int cpus_online(void)
	341	{
	342	return sysconf(_SC_NPROCESSORS_ONLN);
	343	}
	344	#endif
	345
7221da37	346	#ifndef CPU_COUNT
6cf71c24 JA	347	#ifdef FIO_HAVE_CPU_AFFINITY
	348	static inline int CPU_COUNT(os_cpu_mask_t *mask)
	349	{
	350	int max_cpus = cpus_online();
	351	int nr_cpus, i;
	352
	353	for (i = 0, nr_cpus = 0; i < max_cpus; i++)
	354	if (fio_cpu_isset(mask, i))
	355	nr_cpus++;
	356
	357	return nr_cpus;
	358	}
	359	#endif
	360	#endif
	361
47f767c1 JA	362	#ifndef FIO_HAVE_GETTID
	363	static inline int gettid(void)
	364	{
	365	return getpid();
	366	}
	367	#endif
	368
0cfe2089 TK	369	#ifndef FIO_HAVE_SHM_ATTACH_REMOVED
	370	static inline int shm_attach_to_open_removed(void)
	371	{
	372	return 0;
	373	}
	374	#endif
	375
2c3e17be SW	376	#ifndef FIO_HAVE_NATIVE_FALLOCATE
	377	static inline bool fio_fallocate(struct fio_file *f, uint64_t offset, uint64_t len)
	378	{
	379	errno = ENOSYS;
	380	return false;
	381	}
	382	#endif
	383
cbbdf1c8 SW	384	#if defined(CONFIG_POSIX_FALLOCATE) \|\| defined(FIO_HAVE_NATIVE_FALLOCATE)
	385	# define FIO_HAVE_ANY_FALLOCATE
	386	#endif
	387
ebac4655	388	#endif