Struct StorageSnapshotDiff 

pub struct StorageSnapshotDiff { /* private fields */ }

Computes and represents differences between storage snapshots.

Maintains cumulative DiffStats across repeated calls so callers can observe aggregate diff activity without re-scanning results.

Implementations

impl StorageSnapshotDiff

pub fn new() -> Self

Create a new differ with zeroed statistics.

pub fn diff( &mut self, old: &HashMap<String, SnapshotEntry>, new: &HashMap<String, SnapshotEntry>, ) -> SnapshotDiffResult

Compute the diff between old and new snapshots.

Each of the four result buckets is sorted by CID ascending for deterministic output. Statistics are updated atomically after the comparison is complete.

pub fn apply_patch( &self, base: &mut HashMap<String, SnapshotEntry>, diff: &SnapshotDiffResult, )

Apply a previously-computed diff to a mutable base snapshot map, bringing it forward to the state described by the diff.

• Added → insert the new entry into base.
• Removed → remove the entry from base.
• Modified → replace the entry in base with the new version.
• Unchanged → no-op.

pub fn stats(&self) -> &DiffStats

Return a reference to the cumulative diff statistics.

Trait Implementations

impl Debug for StorageSnapshotDiff

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for StorageSnapshotDiff

fn default() -> StorageSnapshotDiff

Returns the “default value” for a type.