diff options
author | Luke Shumaker <lukeshu@lukeshu.com> | 2022-11-15 20:57:04 -0700 |
---|---|---|
committer | Luke Shumaker <lukeshu@lukeshu.com> | 2022-12-20 19:58:11 -0700 |
commit | 580189ee3e43d5595a8700ee21b8900b0dd5389d (patch) | |
tree | 6f47b5728a9fc4cad3d87578396c30637161fbf2 /lib/btrfsprogs/btrfsinspect/rebuildnodes/uuidmap.go | |
parent | a71e1969a1b24500ce9885c4a3f1aeee40c421a8 (diff) |
Delete 'inspect visualize-nodes'
Diffstat (limited to 'lib/btrfsprogs/btrfsinspect/rebuildnodes/uuidmap.go')
-rw-r--r-- | lib/btrfsprogs/btrfsinspect/rebuildnodes/uuidmap.go | 73 |
1 files changed, 0 insertions, 73 deletions
diff --git a/lib/btrfsprogs/btrfsinspect/rebuildnodes/uuidmap.go b/lib/btrfsprogs/btrfsinspect/rebuildnodes/uuidmap.go index 7be903a..4d93916 100644 --- a/lib/btrfsprogs/btrfsinspect/rebuildnodes/uuidmap.go +++ b/lib/btrfsprogs/btrfsinspect/rebuildnodes/uuidmap.go @@ -5,12 +5,8 @@ package rebuildnodes import ( - "fmt" - "strings" - "git.lukeshu.com/btrfs-progs-ng/lib/btrfs/btrfsprim" "git.lukeshu.com/btrfs-progs-ng/lib/containers" - "git.lukeshu.com/btrfs-progs-ng/lib/maps" ) type uuidMap struct { @@ -57,72 +53,3 @@ func (m uuidMap) ParentTree(tree btrfsprim.ObjID) (btrfsprim.ObjID, bool) { } return parentObjID, true } - -type fullAncestorLister struct { - uuidMap uuidMap - treeAncestors map[btrfsprim.ObjID]containers.Set[btrfsprim.ObjID] - - memos map[btrfsprim.ObjID]containers.Set[btrfsprim.ObjID] -} - -func newFullAncestorLister(uuidMap uuidMap, treeAncestors map[btrfsprim.ObjID]containers.Set[btrfsprim.ObjID]) fullAncestorLister { - return fullAncestorLister{ - uuidMap: uuidMap, - treeAncestors: treeAncestors, - memos: make(map[btrfsprim.ObjID]containers.Set[btrfsprim.ObjID]), - } -} - -type loopError []btrfsprim.ObjID - -func (le loopError) Error() string { - var buf strings.Builder - buf.WriteString("loop: ") - for i, treeID := range le { - if i > 0 { - buf.WriteString("->") - } - fmt.Fprintf(&buf, "%d", treeID) - } - return buf.String() -} - -func (fa fullAncestorLister) GetFullAncestors(child btrfsprim.ObjID) containers.Set[btrfsprim.ObjID] { - if memoized, ok := fa.memos[child]; ok { - if memoized == nil { - panic(loopError{child}) - } - return memoized - } - fa.memos[child] = nil - defer func() { - if r := recover(); r != nil { - if le, ok := r.(loopError); ok { - r = append(loopError{child}, le...) - } - panic(r) - } - }() - - ret := make(containers.Set[btrfsprim.ObjID]) - defer func() { - fa.memos[child] = ret - }() - - // Try to use '.uuidMap' instead of '.treeAncestors' if possible. - knownAncestors := make(containers.Set[btrfsprim.ObjID]) - if parent, ok := fa.uuidMap.ParentTree(child); ok { - if parent == 0 { - return ret - } - knownAncestors.Insert(parent) - } else { - knownAncestors.InsertFrom(fa.treeAncestors[child]) - } - - for _, ancestor := range maps.SortedKeys(knownAncestors) { - ret.Insert(ancestor) - ret.InsertFrom(fa.GetFullAncestors(ancestor)) - } - return ret -} |