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What does "mutex" mean in programming?
mutex is one of the most common terms in software development. This guide explains what it means, how it is used in practice, and why it matters, with real examples from the developer world.
Definition
Short for mutual exclusion. A synchronization primitive that ensures only one thread can access a shared resource at a time. A thread 'locks' the mutex before accessing the resource and 'unlocks' it when done. Other threads that try to lock it will block until it is released.
Example
"We added a mutex around the shared cache to prevent race conditions when multiple goroutines write simultaneously."
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