What category of multitasking do locking mechanisms using mutexes belong to?

Locking mechanisms using mutexes relate to cooperative multitasking or thread synchronization in a concurrent environment.

In the context of Go and multitasking, mutexes provide mutual exclusion, allowing only one thread (goroutine) at a time to access the critical section.

This is not preemptive multitasking, but rather a synchronization mechanism to coordinate the work of parallel tasks, preventing data races and ensuring correctness.

Example of using a mutex in Go:

var mu sync.Mutex
var counter int

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