aleesa-bot/aleesa-jabber-go
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eleksir
2024-04-19 21:30:16 +03:00
parent 3b6dd3fdef
commit 442142291c
585 changed files with 21099 additions and 15328 deletions
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14
vendor/github.com/cockroachdb/pebble/internal/manifest/btree.go generated vendored
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@@ -195,7 +195,7 @@ func (n *node) incRef() {
// new nodes pass contentsToo=false to preserve existing reference counts during
// operations that should yield a net-zero change to descendant refcounts.
// When a node is released, its contained files are dereferenced.
func (n *node) decRef(contentsToo bool, obsolete *[]*FileMetadata) {
func (n *node) decRef(contentsToo bool, obsolete *[]*FileBacking) {
if n.ref.Add(-1) > 0 {
// Other references remain. Can't free.
return
@@ -215,7 +215,13 @@ func (n *node) decRef(contentsToo bool, obsolete *[]*FileMetadata) {
if obsolete == nil {
panic(fmt.Sprintf("file metadata %s dereferenced to zero during tree mutation", f.FileNum))
}
*obsolete = append(*obsolete, f)
// Reference counting is performed on the FileBacking. In the case
// of a virtual sstable, this reference counting is performed on
// a FileBacking which is shared by every single virtual sstable
// with the same backing sstable. If the reference count hits 0,
// then we know that the FileBacking won't be required by any
// sstable in Pebble, and that the backing sstable can be deleted.
*obsolete = append(*obsolete, f.FileBacking)
}
}
if !n.leaf {
@@ -761,8 +767,8 @@ type btree struct {
// Release dereferences and clears the root node of the btree, removing all
// items from the btree. In doing so, it decrements contained file counts.
// It returns a slice of newly obsolete files, if any.
func (t *btree) Release() (obsolete []*FileMetadata) {
// It returns a slice of newly obsolete backing files, if any.
func (t *btree) Release() (obsolete []*FileBacking) {
if t.root != nil {
t.root.decRef(true /* contentsToo */, &obsolete)
t.root = nil