func (r *RadosIoCtx) SnapGetName(snapid RadosSnapId) (string, error) {
var snapname [MAX_NAME_LEN]C.char
cerr := C.rados_ioctx_snap_get_name(*r.ctx, C.rados_snap_t(snapid), &snapname[0], MAX_NAME_LEN)
if cerr < 0 {
return "", errors.New("get snap name failed")
}
return C.GoString(&snapname[0]), nil
}
// ReverseLookupSnapshot returns the name of the given pool snapshot id.
func (pool *Pool) ReverseLookupSnapshot(snapId SnapshotId) (string, error) {
id := C.rados_snap_t(snapId)
bufLen := 8
for {
bufAddr := bufferAddress(bufLen)
ret := C.rados_ioctx_snap_get_name(pool.context, id, bufAddr, C.int(bufLen))
if int(ret) == -int(syscall.ERANGE) {
bufLen *= 2
continue
}
if ret < 0 {
err := toRadosError(ret)
err.Message = fmt.Sprintf("Unable to reverse lookup pool snapshot id %d.", snapId)
return "", err
}
name := C.GoString(bufAddr)
return name, nil
}
}
