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Semaphore vs Monitor

Explore the differences between semaphores and monitors in Ruby concurrency. Understand how monitors manage atomic locks with condition variables, while semaphores depend on developer lock handling. Learn the risks of semaphore misuse and how monitors provide safer synchronization with built-in locking and signaling.

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Semaphore vs Monitor

Monitor, mutex, and semaphores can be confusing concepts initially. A monitor is made up of a mutex and a condition variable. One can think of a mutex as a subset of a monitor. Differences between a monitor and a semaphore are discussed below.

The Difference

  • A monitor ...