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path: root/lib/btrfs/btrfsprim/misc.go
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Diffstat (limited to 'lib/btrfs/btrfsprim/misc.go')
-rw-r--r--lib/btrfs/btrfsprim/misc.go71
1 files changed, 0 insertions, 71 deletions
diff --git a/lib/btrfs/btrfsprim/misc.go b/lib/btrfs/btrfsprim/misc.go
index ca2e313..38290d6 100644
--- a/lib/btrfs/btrfsprim/misc.go
+++ b/lib/btrfs/btrfsprim/misc.go
@@ -5,84 +5,13 @@
package btrfsprim
import (
- "fmt"
- "math"
"time"
"git.lukeshu.com/btrfs-progs-ng/lib/binstruct"
- "git.lukeshu.com/btrfs-progs-ng/lib/containers"
)
type Generation uint64
-type Key struct {
- ObjectID ObjID `bin:"off=0x0, siz=0x8"` // Each tree has its own set of Object IDs.
- ItemType ItemType `bin:"off=0x8, siz=0x1"`
- Offset uint64 `bin:"off=0x9, siz=0x8"` // The meaning depends on the item type.
- binstruct.End `bin:"off=0x11"`
-}
-
-// mimics print-tree.c:btrfs_print_key()
-func (key Key) Format(tree ObjID) string {
- switch tree {
- case UUID_TREE_OBJECTID:
- return fmt.Sprintf("(%v %v %#08x)",
- key.ObjectID.Format(tree),
- key.ItemType,
- key.Offset)
- case ROOT_TREE_OBJECTID, QUOTA_TREE_OBJECTID:
- return fmt.Sprintf("(%v %v %v)",
- key.ObjectID.Format(tree),
- key.ItemType,
- ObjID(key.Offset).Format(tree))
- default:
- if key.Offset == math.MaxUint64 {
- return fmt.Sprintf("(%v %v -1)",
- key.ObjectID.Format(tree),
- key.ItemType)
- } else {
- return fmt.Sprintf("(%v %v %v)",
- key.ObjectID.Format(tree),
- key.ItemType,
- key.Offset)
- }
- }
-}
-
-func (key Key) String() string {
- return key.Format(0)
-}
-
-var MaxKey = Key{
- ObjectID: math.MaxUint64,
- ItemType: math.MaxUint8,
- Offset: math.MaxUint64,
-}
-
-func (key Key) Mm() Key {
- switch {
- case key.Offset > 0:
- key.Offset--
- case key.ItemType > 0:
- key.ItemType--
- case key.ObjectID > 0:
- key.ObjectID--
- }
- return key
-}
-
-func (a Key) Compare(b Key) int {
- if d := containers.NativeCompare(a.ObjectID, b.ObjectID); d != 0 {
- return d
- }
- if d := containers.NativeCompare(a.ItemType, b.ItemType); d != 0 {
- return d
- }
- return containers.NativeCompare(a.Offset, b.Offset)
-}
-
-var _ containers.Ordered[Key] = Key{}
-
type Time struct {
Sec int64 `bin:"off=0x0, siz=0x8"` // Number of seconds since 1970-01-01T00:00:00Z.
NSec uint32 `bin:"off=0x8, siz=0x4"` // Number of nanoseconds since the beginning of the second.