mirror of https://github.com/ceph/go-ceph
46 lines
1.2 KiB
Go
46 lines
1.2 KiB
Go
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// +build luminous mimic
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// +build !nautilus
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//
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// Ceph Nautilus introduced rbd_get_parent() and deprecated rbd_get_parent_info().
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// Ceph Nautilus introduced rbd_list_children3() and deprecated rbd_list_children().
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package rbd
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// #cgo LDFLAGS: -lrbd
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// #include <rbd/librbd.h>
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// #include <errno.h>
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import "C"
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import (
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"bytes"
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"unsafe"
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)
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// GetParentInfo looks for the parent of the image and stores the pool, name
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// and snapshot-name in the byte-arrays that are passed as arguments.
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//
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// Implements:
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// int rbd_get_parent_info(rbd_image_t image, char *parent_pool_name,
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// size_t ppool_namelen, char *parent_name,
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// size_t pnamelen, char *parent_snap_name,
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// size_t psnap_namelen)
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func (image *Image) GetParentInfo(p_pool, p_name, p_snapname []byte) error {
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if err := image.validate(imageIsOpen); err != nil {
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return err
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}
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ret := C.rbd_get_parent_info(
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image.image,
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(*C.char)(unsafe.Pointer(&p_pool[0])),
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(C.size_t)(len(p_pool)),
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(*C.char)(unsafe.Pointer(&p_name[0])),
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(C.size_t)(len(p_name)),
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(*C.char)(unsafe.Pointer(&p_snapname[0])),
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(C.size_t)(len(p_snapname)))
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if ret == 0 {
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return nil
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} else {
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return RBDError(ret)
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}
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}
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