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Design a Bounded Queue for Multithreading

HardSystem Design00:00
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Your question is Design a Bounded Queue for Multithreading. Take a moment with it on the right.

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Problem

Design Bounded Queue such that it functions in multithreaded environment ?

Asked in the LLD and Concurrency stage. Explain the queue API, synchronization strategy, blocking behavior, shutdown semantics, and how the design could support a producer-consumer path in an ML inference service.

Address the following:

  1. Define enqueue and dequeue behavior when the queue is full or empty.
  2. Explain locking, condition variables, notification, and spurious wakeups.
  3. Handle interruption, shutdown, fairness, and concurrent close operations.
  4. Discuss capacity sizing, observability, and failure handling in a low-latency serving path.
  5. Provide pseudocode or implementation-level detail and analyze time and space complexity.

Assume bounded memory is required and that multiple producers and consumers may operate concurrently.