lock-queue

A simple locking mechanism for serializing access to a resource using promises. Version 1.0.1 is the latest stable release. This package provides a Locker class that manages a queue of promise-returning functions, supporting both exclusive and non-exclusive locks. Exclusive locks block all other operations until they complete, while non-exclusive locks run concurrently. This is useful for controlling access to shared resources without full mutex complexity. It has zero runtime dependencies and is designed for Node.js environments (>=0.10.0), with no browser support. Compared to alternatives like async-lock, lock-queue offers a minimal API focused on queue-based serialization with concurrency support for non-exclusive tasks.