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Ruby Concurrency for Senior Engineering Interviews

ReadWrite Lock

Explore how to design and implement a ReadWrite lock in Ruby to enable multiple readers to access resources simultaneously while ensuring exclusive access for a single writer. Understand the use of mutexes, condition variables, and thread synchronization primitives to manage concurrent read and write operations effectively, which is essential for solving common concurrency problems in senior engineering interviews.

We'll cover the following...

Read Write Lock

Imagine you have an application where you have multiple readers and a single writer. You are asked to design a lock that lets multiple readers read at the same time, but only one writer writes at a time.

Solution

First of all, let us define the APIs our class will expose. We'll need two for writer and two for reader. These are:

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