blob: 954178ddaecf3c25805db4e55a22ab104f570b69 [file] [log] [blame]
#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 <asm/byteorder.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
#include <stdio.h>
#include <linux/ashmem.h>
#include <sys/mman.h>
#define ASHMEM_DEVICE "/dev/ashmem"
static inline int shmctl (int __shmid, int __cmd, struct shmid_ds *__buf)
{
int ret=0;
if (__cmd == IPC_RMID)
{
int length = ioctl(__shmid, ASHMEM_GET_SIZE, NULL);
struct ashmem_pin pin = {0 , length};
ret = ioctl(__shmid, ASHMEM_UNPIN, &pin);
close(__shmid);
}
return ret;
}
static inline int shmget (key_t __key, size_t __size, int __shmflg)
{
int fd,ret;
char key[11];
fd = open(ASHMEM_DEVICE, O_RDWR);
if (fd < 0)
return fd;
sprintf(key,"%d",__key);
ret = ioctl(fd, ASHMEM_SET_NAME, key);
if (ret < 0)
goto error;
ret = ioctl(fd, ASHMEM_SET_SIZE, __size);
if (ret < 0)
goto error;
return fd;
error:
close(fd);
return ret;
}
static inline void *shmat (int __shmid, const void *__shmaddr, int __shmflg)
{
size_t *ptr, size = ioctl(__shmid, ASHMEM_GET_SIZE, NULL);
ptr = mmap(NULL, size + sizeof(size_t), PROT_READ | PROT_WRITE, MAP_SHARED, __shmid, 0);
*ptr = size; //save size at beginning of buffer, for use with munmap
return &ptr[1];
}
static inline int shmdt (const void *__shmaddr)
{
size_t *ptr, size;
ptr = (size_t *)__shmaddr;
ptr--;
size = *ptr; //find mmap size which we stored at the beginning of the buffer
return munmap((void *)ptr, size + sizeof(size_t));
}
#define SPLICE_DEF_SIZE (64*1024)
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
static inline int ioprio_set(int which, int who, int ioprio_class, int ioprio)
{
/*
* If no class is set, assume BE
*/
if (!ioprio_class)
ioprio_class = IOPRIO_CLASS_BE;
ioprio |= ioprio_class << IOPRIO_CLASS_SHIFT;
return syscall(__NR_ioprio_set, which, who, ioprio);
}
#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