Ring Buffer Atomic Counter Lockless Producer Consumer

The patent extracts the locking mechanism from the queue access protocol and replaces it with atomic operations on counters. Each consumer has a dedicated counter that tracks the next available data item, eliminating the need for mutual exclusion locks while maintaining queue consistency through atomic increment and read operations.

The patent introduces counters as intermediary variables between producers and consumers. Instead of direct access to the queue structure requiring locks, consumers monitor their assigned counter to determine when data is available, and producers update the counter atomically when adding data, serving as a mediator that coordinates access without serialization.

The patent segments the monitoring responsibility among consumers by assigning each consumer a unique counter. Instead of all consumers monitoring the same queue head position, each consumer independently monitors their own counter, which is updated atomically by the producer. This segmentation eliminates the need for consumer arbitration and ensures only the appropriate consumer resumes execution.

The patent performs preliminary assignment of unique counters to consumers before they begin consuming data. This preliminary action establishes a clear division of monitoring responsibilities, so when data is produced, the counter update automatically identifies which specific consumer should be notified and resume execution, avoiding unnecessary context switches and arbitration overhead.