Concurrent Linked List Implementation, Design A concurrent linked list runs through a ConcurrentHashMap to provide eviction ordering. It follows the FIFO principle and uses a lock-free mechanism for efficient multi-threading. This implementation Set Abstract Data Type We will cover several ways of implementing this using a concurrent linked list These techniques generalize to other pointer-based data structures like binary trees (balanced and unbalanced), b-trees, radix trees, etc The Concurrent [Collection] classes wrap the regular collections so that you don't have to think about synchronizing access. The concurrent-ll package contains the skeleton code for implementing and evaluating two concurrent linked lists: a lock-free and a lock-based. If I use Collections#synchronizedMap(), I would have to use synchronized blocks for iteration. Michael and Michael L. Nov 22, 2025 · ConcurrentList ConcurrentList is a collection of concurrent linked-list implementations in modern C++. ConcurrentLinkedQueue is based on a singly linked list and is – like most queue implementations – thread-safe (see below). Doubly-linked list implementation of the List and Deque interfaces. Each implementation demonstrates a different synchronization technique, ranging from coarse-grained locks to fully lock-free algorithms. This implementation employs an efficient non-blocking algorithm based on one described in Simple, Fast, and Practical Non-Blocking and Blocking Concurrent Queue Algorithms by Maged M. Is this a good choice (it is not really a linked list)? If it's not a good choice, does anyone know of a reliable concurrent (thread-safe) wait-free (lock-free) Linked List implementation in Java? Like most other concurrent collection implementations, this class does not permit the use of null elements. Like most other concurrent collection implementations, this class does not permit the use of null elements. Oct 29, 2016 · If no java implementation of the above mentioned Linked List exists, I think, I would use the java. A quote from their site: A high performance version of java. One of the key data structures that assist in achieving this is the `ConcurrentLinkedQueue`. ConcurrentLinkedQueue<E>. Supports insertion and access ordered eviction policies (FIFO, LRU, and Second Chance). Scott. Concurrent Linked List A thread-safe singly linked list implementation in C#. util. Lock-based and lock-free versions. More about this in the next tutorial series on Mar 30, 2026 · In the realm of Java programming, handling concurrent operations efficiently is a crucial aspect, especially when dealing with multi-threaded environments. All of the operations perform as could be expected for a doubly-linked list. (The only non-thread-safe queue is PriorityQueue – and the deques ArrayDeque and LinkedList, which also implement the Queue interface. Note that this implementation is Sep 6, 2011 · Note that ConcurrentLinkedQueue does not implement the List interface, so it suffices as a replacement for LinkedList only if the latter was used purely as a queue.
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