#include <sys/ioctl.h>
#endif
#include <sys/mount.h>
-#ifdef USE_UBLIO
-#include <sys/uio.h>
-#include <ublio.h>
-#endif
struct exfat_dev
{
int fd;
enum exfat_mode mode;
off_t size; /* in bytes */
-#ifdef USE_UBLIO
- off_t pos;
- ublio_filehandle_t ufh;
-#endif
};
static int open_ro(const char* spec)
{
struct exfat_dev* dev;
struct stat stbuf;
-#ifdef USE_UBLIO
- struct ublio_param up;
-#endif
dev = malloc(sizeof(struct exfat_dev));
if (dev == NULL)
}
}
-#ifdef USE_UBLIO
- memset(&up, 0, sizeof(struct ublio_param));
- up.up_blocksize = 256 * 1024;
- up.up_items = 64;
- up.up_grace = 32;
- up.up_priv = &dev->fd;
-
- dev->pos = 0;
- dev->ufh = ublio_open(&up);
- if (dev->ufh == NULL)
- {
- close(dev->fd);
- free(dev);
- exfat_error("failed to initialize ublio");
- return NULL;
- }
-#endif
-
return dev;
}
{
int rc = 0;
-#ifdef USE_UBLIO
- if (ublio_close(dev->ufh) != 0)
- {
- exfat_error("failed to close ublio");
- rc = -EIO;
- }
-#endif
if (close(dev->fd) != 0)
{
exfat_error("failed to close device: %s", strerror(errno));
{
int rc = 0;
-#ifdef USE_UBLIO
- if (ublio_fsync(dev->ufh) != 0)
- {
- exfat_error("ublio fsync failed");
- rc = -EIO;
- }
-#endif
if (fsync(dev->fd) != 0)
{
exfat_error("fsync failed: %s", strerror(errno));
off_t exfat_seek(struct exfat_dev* dev, off_t offset, int whence)
{
-#ifdef USE_UBLIO
- /* XXX SEEK_CUR will be handled incorrectly */
- return dev->pos = lseek(dev->fd, offset, whence);
-#else
return lseek(dev->fd, offset, whence);
-#endif
}
ssize_t exfat_read(struct exfat_dev* dev, void* buffer, size_t size)
{
-#ifdef USE_UBLIO
- ssize_t result = ublio_pread(dev->ufh, buffer, size, dev->pos);
- if (result >= 0)
- dev->pos += size;
- return result;
-#else
return read(dev->fd, buffer, size);
-#endif
}
ssize_t exfat_write(struct exfat_dev* dev, const void* buffer, size_t size)
{
-#ifdef USE_UBLIO
- ssize_t result = ublio_pwrite(dev->ufh, buffer, size, dev->pos);
- if (result >= 0)
- dev->pos += size;
- return result;
-#else
return write(dev->fd, buffer, size);
-#endif
}
ssize_t exfat_pread(struct exfat_dev* dev, void* buffer, size_t size,
off_t offset)
{
-#ifdef USE_UBLIO
- return ublio_pread(dev->ufh, buffer, size, offset);
-#else
return pread(dev->fd, buffer, size, offset);
-#endif
}
ssize_t exfat_pwrite(struct exfat_dev* dev, const void* buffer, size_t size,
off_t offset)
{
-#ifdef USE_UBLIO
- return ublio_pwrite(dev->ufh, buffer, size, offset);
-#else
return pwrite(dev->fd, buffer, size, offset);
-#endif
}
ssize_t exfat_generic_pread(const struct exfat* ef, struct exfat_node* node,