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Junior — Middle

What methods are used to organize safe concurrent access of coroutines to a resource?

sobes.tech AI

Answer from AI

To safely share access of coroutines to a resource in Android (Kotlin), the following methods are usually used:

  • Mutex from kotlinx.coroutines — provides mutual exclusion, allowing only one coroutine to access the resource at a time.
  • Channel — for passing data between coroutines, helping to avoid direct shared access.
  • Atomic operations — for simple cases where you need to safely update primitive values.

Example of using Mutex:

val mutex = Mutex()
var sharedResource = 0

suspend fun safeIncrement() {
    mutex.withLock {
        sharedResource++
    }
}

This approach prevents data races and ensures correct behavior during parallel execution of coroutines.