// Convert property to name
// ( returns built in string representation of property name).
// This is optional, you can represent each property with string
// name of choice.
func DatasetPropertyToName(p ZFSProp) (name string) {
if p == ZFSNumProps {
return "numofprops"
}
prop := C.zfs_prop_t(p)
name = C.GoString(C.zfs_prop_to_name(prop))
return
}
func toCZFSProperties(props ZFSProperties) (cprops *C.nvlist_t) {
cprops = nil
for prop, value := range props {
name := C.zfs_prop_to_name(C.zfs_prop_t(prop))
r := C.add_prop_list(name, C.CString(value), &cprops, C.boolean_t(0))
if r != 0 {
if cprops != nil {
C.nvlist_free(cprops)
cprops = nil
}
return
}
}
return
}
// Set ZFS dataset property to value. Not all properties can be set,
// some can be set only at creation time and some are read only.
// Always check if returned error and its description.
func (d *Dataset) SetProperty(p ZFSProp, value string) (err error) {
if d.list == nil {
err = errors.New(msgDatasetIsNil)
return
}
errcode := C.zfs_prop_set(d.list.zh, C.zfs_prop_to_name(
C.zfs_prop_t(p)), C.CString(value))
if errcode != 0 {
err = LastError()
}
// Update Properties member with change made
if _, err = d.GetProperty(p); err != nil {
return
}
return
}
func datasetPropertiesTo_nvlist(props map[ZFSProp]Property) (
cprops *C.nvlist_t, err error) {
// convert properties to nvlist C type
r := C.nvlist_alloc(&cprops, C.NV_UNIQUE_NAME, 0)
if r != 0 {
err = errors.New("Failed to allocate properties")
return
}
for prop, value := range props {
r := C.nvlist_add_string(
cprops, C.zfs_prop_to_name(
C.zfs_prop_t(prop)), C.CString(value.Value))
if r != 0 {
err = errors.New("Failed to convert property")
return
}
}
return
}