#define FIO_OS os_android
#include <sys/ioctl.h>
+#include <sys/mman.h>
#include <sys/uio.h>
#include <sys/syscall.h>
#include <sys/vfs.h>
#define OS_MAP_ANON MAP_ANONYMOUS
+#ifndef POSIX_MADV_DONTNEED
#define posix_madvise madvise
#define POSIX_MADV_DONTNEED MADV_DONTNEED
#define POSIX_MADV_SEQUENTIAL MADV_SEQUENTIAL
#define POSIX_MADV_RANDOM MADV_RANDOM
+#endif
+
#ifdef MADV_REMOVE
#define FIO_MADV_FREE MADV_REMOVE
#endif
#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)
{
- return syscall(__NR_shmctl, __shmid, __cmd, __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)
{
- return syscall(__NR_shmget, __key, __size, __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)
{
- return (void *)syscall(__NR_shmat, __shmid, __shmaddr, __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)
{
- return syscall(__NR_shmctl, __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 {
return atoi(size);
}
-static inline unsigned long long get_fs_size(const char *path)
+static inline unsigned long long get_fs_free_size(const char *path)
{
unsigned long long ret;
struct statfs s;
return errno;
}
+#ifdef CONFIG_SCHED_IDLE
+static inline int fio_set_sched_idle(void)
+{
+ struct sched_param p = { .sched_priority = 0, };
+ return sched_setscheduler(gettid(), SCHED_IDLE, &p);
+}
+#endif
+
#endif