Junior — Middle

What types of mutual exclusion lock mechanisms do you use in your projects?

sobes.tech AI

Answer from AI

In Go, the most common way to implement mutual exclusion is by using the standard sync.Mutex type. It is simple to use and effectively blocks critical sections of code.

I also use sync.RWMutex when I need to differentiate between read and write access — multiple goroutines can read data simultaneously, but writing blocks all.

In some cases, I use channels for synchronization, which helps avoid explicit locks and makes the code more declarative.

Example with sync.Mutex:

var mu sync.Mutex
var counter int

func increment() {
    mu.Lock()
    defer mu.Unlock()
    counter++
}

Thus, the choice of mechanism depends on the specific task and performance requirements.

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