mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-09-20 15:39:52 +00:00
2808d526bb
as go-ceph is 0.5.0 is released updating the dependency to latest release. more info about release at https://github.com/ceph/go-ceph/releases/tag/v0.5.0 Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
89 lines
2.5 KiB
Go
89 lines
2.5 KiB
Go
// +build luminous mimic
|
|
// +build !nautilus
|
|
//
|
|
// Ceph Nautilus introduced rbd_get_parent() and deprecated rbd_get_parent_info().
|
|
// Ceph Nautilus introduced rbd_list_children3() and deprecated rbd_list_children().
|
|
|
|
package rbd
|
|
|
|
// #cgo LDFLAGS: -lrbd
|
|
// #include <rbd/librbd.h>
|
|
// #include <errno.h>
|
|
import "C"
|
|
|
|
import (
|
|
"unsafe"
|
|
|
|
"github.com/ceph/go-ceph/internal/cutil"
|
|
)
|
|
|
|
// GetParentInfo looks for the parent of the image and stores the pool, name
|
|
// and snapshot-name in the byte-arrays that are passed as arguments.
|
|
//
|
|
// Implements:
|
|
// int rbd_get_parent_info(rbd_image_t image, char *parent_pool_name,
|
|
// size_t ppool_namelen, char *parent_name,
|
|
// size_t pnamelen, char *parent_snap_name,
|
|
// size_t psnap_namelen)
|
|
func (image *Image) GetParentInfo(p_pool, p_name, p_snapname []byte) error {
|
|
if err := image.validate(imageIsOpen); err != nil {
|
|
return err
|
|
}
|
|
|
|
ret := C.rbd_get_parent_info(
|
|
image.image,
|
|
(*C.char)(unsafe.Pointer(&p_pool[0])),
|
|
(C.size_t)(len(p_pool)),
|
|
(*C.char)(unsafe.Pointer(&p_name[0])),
|
|
(C.size_t)(len(p_name)),
|
|
(*C.char)(unsafe.Pointer(&p_snapname[0])),
|
|
(C.size_t)(len(p_snapname)))
|
|
if ret == 0 {
|
|
return nil
|
|
} else {
|
|
return rbdError(ret)
|
|
}
|
|
}
|
|
|
|
// ListChildren returns arrays with the pools and names of the images that are
|
|
// children of the given image. The index of the pools and images arrays can be
|
|
// used to link the two items together.
|
|
//
|
|
// Implements:
|
|
// ssize_t rbd_list_children(rbd_image_t image, char *pools,
|
|
// size_t *pools_len,
|
|
// char *images, size_t *images_len);
|
|
func (image *Image) ListChildren() (pools []string, images []string, err error) {
|
|
if err := image.validate(imageIsOpen); err != nil {
|
|
return nil, nil, err
|
|
}
|
|
|
|
var c_pools_len, c_images_len C.size_t
|
|
|
|
ret := C.rbd_list_children(image.image,
|
|
nil, &c_pools_len,
|
|
nil, &c_images_len)
|
|
if ret == 0 {
|
|
return nil, nil, nil
|
|
}
|
|
if ret < 0 && ret != -C.ERANGE {
|
|
return nil, nil, rbdError(ret)
|
|
}
|
|
|
|
pools_buf := make([]byte, c_pools_len)
|
|
images_buf := make([]byte, c_images_len)
|
|
|
|
ret = C.rbd_list_children(image.image,
|
|
(*C.char)(unsafe.Pointer(&pools_buf[0])),
|
|
&c_pools_len,
|
|
(*C.char)(unsafe.Pointer(&images_buf[0])),
|
|
&c_images_len)
|
|
if ret < 0 {
|
|
return nil, nil, rbdError(ret)
|
|
}
|
|
|
|
pools = cutil.SplitSparseBuffer(pools_buf[:c_pools_len])
|
|
images = cutil.SplitSparseBuffer(images_buf[:c_images_len])
|
|
return pools, images, nil
|
|
}
|