A template trait for mutable maps that allow concurrent access.
A template trait for mutable maps that allow concurrent access.
This is a base trait for all Scala concurrent map implementations. It provides all of the methods aMap does, with the difference that all the changes are atomic. It also describes methods specific to concurrent maps.
the key type of the map
the value type of the map
"Scala's Collection Library overview" section onConcurrent Maps for more information.
A concurrent hash-trie or TrieMap is a concurrent thread-safe lock-free implementation of a hash array mapped trie.
A concurrent hash-trie or TrieMap is a concurrent thread-safe lock-free implementation of a hash array mapped trie. It is used to implement the concurrent map abstraction. It has particularly scalable concurrent insert and remove operations and is memory-efficient. It supports O(1), atomic, lock-free snapshots which are used to implement linearizable lock-free size, iterator and clear operations. The cost of evaluating the (lazy) snapshot is distributed across subsequent updates, thus making snapshot evaluation horizontally scalable.
For details, see:http://lampwww.epfl.ch/~prokopec/ctries-snapshot.pdf