diff options
Diffstat (limited to 'lib/btrfs/btrfsprim/key.go')
| -rw-r--r-- | lib/btrfs/btrfsprim/key.go | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/lib/btrfs/btrfsprim/key.go b/lib/btrfs/btrfsprim/key.go index 7a3cc5c..b07cc8c 100644 --- a/lib/btrfs/btrfsprim/key.go +++ b/lib/btrfs/btrfsprim/key.go @@ -64,8 +64,26 @@ func (key Key) Mm() Key { key.Offset-- case key.ItemType > 0: key.ItemType-- + key.Offset = MaxOffset case key.ObjectID > 0: key.ObjectID-- + key.ItemType = MAX_KEY + key.Offset = MaxOffset + } + return key +} + +func (key Key) Pp() Key { + switch { + case key.Offset < MaxOffset: + key.Offset++ + case key.ItemType < MAX_KEY: + key.ItemType++ + key.Offset = 0 + case key.ObjectID < MAX_OBJECTID: + key.ObjectID++ + key.ItemType = 0 + key.Offset = 0 } return key } |