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Concurrency patterns · designlab

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Part 5 · Module 9

Concurrency patterns

Master thread safety, asynchronous flows, and synchronization: event loops vs threads, producer-consumer queues, thread pools, read-write locks, and double-checked locking.

0 of 5 lessons30 min

9.1The JS event loop vs Java threadsUp next6m
9.2Producer-consumer6m
9.3Thread pool and futures/promises6m
9.4Read-write locks and immutability6m
9.5Thread-safe singleton and double-checked locking6m
LabConcurrency Patterns: Thread Pools, Queues, and SynchronizationFinish “Patterns Beyond GoF: Enterprise Data and Domain Logic” first35m

Practice what this module teaches

Fair Async Semaphore LLDCoordinate asynchronous work with FIFO permits, cancellation and single-use release handles.Advanced50 min Bounded Blocking Queue LLDCoordinate producers and consumers with capacity, deadlines and explicit close semantics.Intermediate40 min Cooperative Async Task Group LLDOwn bounded child tasks, request cancellation on failure and join every started child.Advanced

50 min

Bounded Circular Buffer LLDImplement a fixed-capacity FIFO with wraparound and explicit overflow behavior.Intermediate35 min

Connection Pool LLDManage bounded resources, acquisition deadlines and safe lease return under concurrency.Advanced50 min