From 079c2a1316616b997e0050a1423c0a5e6bda4f16 Mon Sep 17 00:00:00 2001 From: Luke Shumaker Date: Mon, 29 Aug 2022 20:28:58 -0600 Subject: wip --- lib/btrfs/btrfsitem/item_uuid.go | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'lib/btrfs') diff --git a/lib/btrfs/btrfsitem/item_uuid.go b/lib/btrfs/btrfsitem/item_uuid.go index 03823ce..451ccae 100644 --- a/lib/btrfs/btrfsitem/item_uuid.go +++ b/lib/btrfs/btrfsitem/item_uuid.go @@ -5,6 +5,8 @@ package btrfsitem import ( + "encoding/binary" + "git.lukeshu.com/btrfs-progs-ng/lib/binstruct" "git.lukeshu.com/btrfs-progs-ng/lib/btrfs/btrfsprim" ) @@ -18,3 +20,10 @@ type UUIDMap struct { // UUID_SUBVOL=251 UUID_RECEIVED_SUBVOL=252 ObjID btrfsprim.ObjID `bin:"off=0, siz=8"` binstruct.End `bin:"off=8"` } + +func KeyToUUID(key btrfsprim.Key) btrfsprim.UUID { + var uuid btrfsprim.UUID + binary.LittleEndian.PutUint64(uuid[:8], uint64(key.ObjectID)) + binary.LittleEndian.PutUint64(uuid[8:], uint64(key.Offset)) + return uuid +} -- cgit v1.2.3-2-g168b