fsal_status_t gpfs_read(struct fsal_obj_handle *obj_hdl,
uint64_t offset,
size_t buffer_size, void *buffer, size_t *read_amount,
bool *end_of_file)
{
struct gpfs_fsal_obj_handle *myself;
fsal_errors_t fsal_error = ERR_FSAL_NO_ERROR;
int retval = 0;
fsal_status_t status;
myself = container_of(obj_hdl, struct gpfs_fsal_obj_handle, obj_handle);
assert(myself->u.file.fd >= 0
&& myself->u.file.openflags != FSAL_O_CLOSED);
status =
GPFSFSAL_read(myself->u.file.fd, offset, buffer_size, buffer,
read_amount, end_of_file);
if (FSAL_IS_ERROR(status))
return status;
if ((*end_of_file == false)
&& ((offset + *read_amount) >= myself->attributes.filesize))
*end_of_file = true;
return fsalstat(fsal_error, retval);
}
fsal_status_t WRAP_GPFSFSAL_read(fsal_file_t * p_file_descriptor, /* IN */
fsal_seek_t * p_seek_descriptor, /* [IN] */
fsal_size_t buffer_size, /* IN */
caddr_t buffer, /* OUT */
fsal_size_t * p_read_amount, /* OUT */
fsal_boolean_t * p_end_of_file /* OUT */ )
{
return GPFSFSAL_read((gpfsfsal_file_t *) p_file_descriptor, p_seek_descriptor,
buffer_size, buffer, p_read_amount, p_end_of_file);
}
