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Concept guides/Concurrency/Two writers, one resource

CodingConcurrency

Two writers, one resource

Hard7 min read

Questions it teaches

Fix the replay of an atomic rate limiterEasy10 min Shared expenses for a group of friendsEasy25 min Atomic increment interleaving simulatorMedium25 min Optimistic concurrency controlMedium25 min Lost update on concurrent incrementsMedium20 min Resource reference use-after-freeMedium25 min Lost update in wallet withdrawalHard30 min Inventory goes negativeHard20 min

Related

Concurrency Designing data structures Backend internals Reviewing AI code Correctness review

Builds on: Designing data structures

Queues, deques & ring buffers3 min Database deduplication3 min

Leads to: Backend internals

Encoding and schema evolution4 min MAC addresses4 min

Related: Reviewing AI code

Catching AI mistakes3 min Understanding code & docs with AI3 min

Related: Correctness review

Spotting correctness bugs3 min Structured logging3 min

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