armdb 0.1.11

sharded bitcask key-value storage optimized for NVMe
Documentation 
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/// Common trait for armdb collections managed by [`Db`](super::tree_db::Db).
///
/// Implemented for `TypedTree`, `TypedMap`, `ZeroTree`, `ZeroMap`
/// where the value type implements [`CollectionMeta`](crate::CollectionMeta).
pub trait Collection: Send + Sync {
    /// Collection name (from `CollectionMeta::NAME`).
    fn name(&self) -> &str;
    /// Number of entries in the collection.
    fn len(&self) -> usize;
    fn is_empty(&self) -> bool {
        self.len() == 0
    }
    /// Run a compaction pass across all shards.
    fn compact(&self) -> crate::DbResult<usize>;
}