[fio.git] / os / os-android.h

#ifndef FIO_OS_ANDROID_H
#define FIO_OS_ANDROID_H

#define	FIO_OS	os_android

#include <sys/ioctl.h>
#include <sys/uio.h>
#include <sys/syscall.h>
#include <sys/vfs.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <sched.h>
#include <linux/unistd.h>
#include <linux/major.h>

#include "binject.h"
#include "../file.h"

#define FIO_HAVE_DISK_UTIL
#define FIO_HAVE_IOSCHED_SWITCH
#define FIO_HAVE_IOPRIO
#define FIO_HAVE_ODIRECT
#define FIO_HAVE_HUGETLB
#define FIO_HAVE_BLKTRACE
#define FIO_HAVE_PSHARED_MUTEX
#define FIO_HAVE_CL_SIZE
#define FIO_HAVE_FS_STAT
#define FIO_HAVE_TRIM
#define FIO_HAVE_GETTID
#define FIO_USE_GENERIC_INIT_RANDOM_STATE
#define FIO_HAVE_E4_ENG
#define FIO_HAVE_BYTEORDER_FUNCS
#define FIO_HAVE_MMAP_HUGE
#define FIO_NO_HAVE_SHM_H

#define OS_MAP_ANON		MAP_ANONYMOUS

#define posix_madvise   madvise
#define POSIX_MADV_DONTNEED MADV_DONTNEED
#define POSIX_MADV_SEQUENTIAL	MADV_SEQUENTIAL
#define POSIX_MADV_RANDOM	MADV_RANDOM
#ifdef MADV_REMOVE
#define FIO_MADV_FREE	MADV_REMOVE
#endif
#ifndef MAP_HUGETLB
#define MAP_HUGETLB 0x40000 /* arch specific */
#endif


/*
 * The Android NDK doesn't currently export <sys/shm.h>, so define the
 * necessary stuff here.
 */

#include <linux/shm.h>
#define SHM_HUGETLB    04000

static inline int shmctl (int __shmid, int __cmd, struct shmid_ds *__buf)
{
	return syscall(__NR_shmctl, __shmid, __cmd, __buf);
}

static inline int shmget (key_t __key, size_t __size, int __shmflg)
{
	return syscall(__NR_shmget, __key, __size, __shmflg);
}

static inline void *shmat (int __shmid, const void *__shmaddr, int __shmflg)
{
	return (void *)syscall(__NR_shmat, __shmid, __shmaddr, __shmflg);
}

static inline int shmdt (const void *__shmaddr)
{
	return syscall(__NR_shmctl, __shmaddr);
}


#define SPLICE_DEF_SIZE	(64*1024)

static inline int ioprio_set(int which, int who, int ioprio)
{
	return syscall(__NR_ioprio_set, which, who, ioprio);
}

enum {
	IOPRIO_CLASS_NONE,
	IOPRIO_CLASS_RT,
	IOPRIO_CLASS_BE,
	IOPRIO_CLASS_IDLE,
};

enum {
	IOPRIO_WHO_PROCESS = 1,
	IOPRIO_WHO_PGRP,
	IOPRIO_WHO_USER,
};

#define IOPRIO_BITS		16
#define IOPRIO_CLASS_SHIFT	13

#ifndef BLKGETSIZE64
#define BLKGETSIZE64	_IOR(0x12,114,size_t)
#endif

#ifndef BLKFLSBUF
#define BLKFLSBUF	_IO(0x12,97)
#endif

#ifndef BLKDISCARD
#define BLKDISCARD	_IO(0x12,119)
#endif

static inline int blockdev_invalidate_cache(struct fio_file *f)
{
	return ioctl(f->fd, BLKFLSBUF);
}

static inline int blockdev_size(struct fio_file *f, unsigned long long *bytes)
{
	if (!ioctl(f->fd, BLKGETSIZE64, bytes))
		return 0;

	return errno;
}

static inline unsigned long long os_phys_mem(void)
{
	long pagesize, pages;

	pagesize = sysconf(_SC_PAGESIZE);
	pages = sysconf(_SC_PHYS_PAGES);
	if (pages == -1 || pagesize == -1)
		return 0;

	return (unsigned long long) pages * (unsigned long long) pagesize;
}

typedef struct { unsigned short r[3]; } os_random_state_t;

static inline void os_random_seed(unsigned long seed, os_random_state_t *rs)
{
	rs->r[0] = seed & 0xffff;
	seed >>= 16;
	rs->r[1] = seed & 0xffff;
	seed >>= 16;
	rs->r[2] = seed & 0xffff;
	seed48(rs->r);
}

static inline long os_random_long(os_random_state_t *rs)
{
	return nrand48(rs->r);
}

#ifdef O_NOATIME
#define FIO_O_NOATIME	O_NOATIME
#else
#define FIO_O_NOATIME	0
#endif

#define fio_swap16(x)	__bswap_16(x)
#define fio_swap32(x)	__bswap_32(x)
#define fio_swap64(x)	__bswap_64(x)

#define CACHE_LINE_FILE	\
	"/sys/devices/system/cpu/cpu0/cache/index0/coherency_line_size"

static inline int arch_cache_line_size(void)
{
	char size[32];
	int fd, ret;

	fd = open(CACHE_LINE_FILE, O_RDONLY);
	if (fd < 0)
		return -1;

	ret = read(fd, size, sizeof(size));

	close(fd);

	if (ret <= 0)
		return -1;
	else
		return atoi(size);
}

static inline unsigned long long get_fs_size(const char *path)
{
	unsigned long long ret;
	struct statfs s;

	if (statfs(path, &s) < 0)
		return -1ULL;

	ret = s.f_bsize;
	ret *= (unsigned long long) s.f_bfree;
	return ret;
}

static inline int os_trim(int fd, unsigned long long start,
			  unsigned long long len)
{
	uint64_t range[2];

	range[0] = start;
	range[1] = len;

	if (!ioctl(fd, BLKDISCARD, range))
		return 0;

	return errno;
}

#endif
Commit	Line	Data
	1	#ifndef FIO_OS_ANDROID_H
	2	#define FIO_OS_ANDROID_H
	3
	4	#define FIO_OS os_android
	5
	6	#include <sys/ioctl.h>
	7	#include <sys/uio.h>
	8	#include <sys/syscall.h>
	9	#include <sys/vfs.h>
	10	#include <unistd.h>
	11	#include <fcntl.h>
	12	#include <errno.h>
	13	#include <sched.h>
	14	#include <linux/unistd.h>
	15	#include <linux/major.h>
	16
	17	#include "binject.h"
	18	#include "../file.h"
	19
	20	#define FIO_HAVE_DISK_UTIL
	21	#define FIO_HAVE_IOSCHED_SWITCH
	22	#define FIO_HAVE_IOPRIO
	23	#define FIO_HAVE_ODIRECT
	24	#define FIO_HAVE_HUGETLB
	25	#define FIO_HAVE_BLKTRACE
	26	#define FIO_HAVE_PSHARED_MUTEX
	27	#define FIO_HAVE_CL_SIZE
	28	#define FIO_HAVE_FS_STAT
	29	#define FIO_HAVE_TRIM
	30	#define FIO_HAVE_GETTID
	31	#define FIO_USE_GENERIC_INIT_RANDOM_STATE
	32	#define FIO_HAVE_E4_ENG
	33	#define FIO_HAVE_BYTEORDER_FUNCS
	34	#define FIO_HAVE_MMAP_HUGE
	35	#define FIO_NO_HAVE_SHM_H
	36
	37	#define OS_MAP_ANON MAP_ANONYMOUS
	38
	39	#define posix_madvise madvise
	40	#define POSIX_MADV_DONTNEED MADV_DONTNEED
	41	#define POSIX_MADV_SEQUENTIAL MADV_SEQUENTIAL
	42	#define POSIX_MADV_RANDOM MADV_RANDOM
	43	#ifdef MADV_REMOVE
	44	#define FIO_MADV_FREE MADV_REMOVE
	45	#endif
	46	#ifndef MAP_HUGETLB
	47	#define MAP_HUGETLB 0x40000 /* arch specific */
	48	#endif
	49
	50
	51	/*
	52	* The Android NDK doesn't currently export <sys/shm.h>, so define the
	53	* necessary stuff here.
	54	*/
	55
	56	#include <linux/shm.h>
	57	#define SHM_HUGETLB 04000
	58
	59	static inline int shmctl (int __shmid, int __cmd, struct shmid_ds *__buf)
	60	{
	61	return syscall(__NR_shmctl, __shmid, __cmd, __buf);
	62	}
	63
	64	static inline int shmget (key_t __key, size_t __size, int __shmflg)
	65	{
	66	return syscall(__NR_shmget, __key, __size, __shmflg);
	67	}
	68
	69	static inline void shmat (int __shmid, const void __shmaddr, int __shmflg)
	70	{
	71	return (void *)syscall(__NR_shmat, __shmid, __shmaddr, __shmflg);
	72	}
	73
	74	static inline int shmdt (const void *__shmaddr)
	75	{
	76	return syscall(__NR_shmctl, __shmaddr);
	77	}
	78
	79
	80	#define SPLICE_DEF_SIZE (64*1024)
	81
	82	static inline int ioprio_set(int which, int who, int ioprio)
	83	{
	84	return syscall(__NR_ioprio_set, which, who, ioprio);
	85	}
	86
	87	enum {
	88	IOPRIO_CLASS_NONE,
	89	IOPRIO_CLASS_RT,
	90	IOPRIO_CLASS_BE,
	91	IOPRIO_CLASS_IDLE,
	92	};
	93
	94	enum {
	95	IOPRIO_WHO_PROCESS = 1,
	96	IOPRIO_WHO_PGRP,
	97	IOPRIO_WHO_USER,
	98	};
	99
	100	#define IOPRIO_BITS 16
	101	#define IOPRIO_CLASS_SHIFT 13
	102
	103	#ifndef BLKGETSIZE64
	104	#define BLKGETSIZE64 _IOR(0x12,114,size_t)
	105	#endif
	106
	107	#ifndef BLKFLSBUF
	108	#define BLKFLSBUF _IO(0x12,97)
	109	#endif
	110
	111	#ifndef BLKDISCARD
	112	#define BLKDISCARD _IO(0x12,119)
	113	#endif
	114
	115	static inline int blockdev_invalidate_cache(struct fio_file *f)
	116	{
	117	return ioctl(f->fd, BLKFLSBUF);
	118	}
	119
	120	static inline int blockdev_size(struct fio_file f, unsigned long long bytes)
	121	{
	122	if (!ioctl(f->fd, BLKGETSIZE64, bytes))
	123	return 0;
	124
	125	return errno;
	126	}
	127
	128	static inline unsigned long long os_phys_mem(void)
	129	{
	130	long pagesize, pages;
	131
	132	pagesize = sysconf(_SC_PAGESIZE);
	133	pages = sysconf(_SC_PHYS_PAGES);
	134	if (pages == -1 \|\| pagesize == -1)
	135	return 0;
	136
	137	return (unsigned long long) pages * (unsigned long long) pagesize;
	138	}
	139
	140	typedef struct { unsigned short r[3]; } os_random_state_t;
	141
	142	static inline void os_random_seed(unsigned long seed, os_random_state_t *rs)
	143	{
	144	rs->r[0] = seed & 0xffff;
	145	seed >>= 16;
	146	rs->r[1] = seed & 0xffff;
	147	seed >>= 16;
	148	rs->r[2] = seed & 0xffff;
	149	seed48(rs->r);
	150	}
	151
	152	static inline long os_random_long(os_random_state_t *rs)
	153	{
	154	return nrand48(rs->r);
	155	}
	156
	157	#ifdef O_NOATIME
	158	#define FIO_O_NOATIME O_NOATIME
	159	#else
	160	#define FIO_O_NOATIME 0
	161	#endif
	162
	163	#define fio_swap16(x) __bswap_16(x)
	164	#define fio_swap32(x) __bswap_32(x)
	165	#define fio_swap64(x) __bswap_64(x)
	166
	167	#define CACHE_LINE_FILE \
	168	"/sys/devices/system/cpu/cpu0/cache/index0/coherency_line_size"
	169
	170	static inline int arch_cache_line_size(void)
	171	{
	172	char size[32];
	173	int fd, ret;
	174
	175	fd = open(CACHE_LINE_FILE, O_RDONLY);
	176	if (fd < 0)
	177	return -1;
	178
	179	ret = read(fd, size, sizeof(size));
	180
	181	close(fd);
	182
	183	if (ret <= 0)
	184	return -1;
	185	else
	186	return atoi(size);
	187	}
	188
	189	static inline unsigned long long get_fs_size(const char *path)
	190	{
	191	unsigned long long ret;
	192	struct statfs s;
	193
	194	if (statfs(path, &s) < 0)
	195	return -1ULL;
	196
	197	ret = s.f_bsize;
	198	ret *= (unsigned long long) s.f_bfree;
	199	return ret;
	200	}
	201
	202	static inline int os_trim(int fd, unsigned long long start,
	203	unsigned long long len)
	204	{
	205	uint64_t range[2];
	206
	207	range[0] = start;
	208	range[1] = len;
	209
	210	if (!ioctl(fd, BLKDISCARD, range))
	211	return 0;
	212
	213	return errno;
	214	}
	215
	216	#endif