SemaphoreExample.kt

// This is example to explain the API for semaphore

fun main() {
  // Creates semaphore with 10 permits
  val semaphore = Semaphore(permits = 10)
  
  // Acquires a permit from this semaphore, suspending until one is available. 
  // All suspending acquirers are processed in first-in-first-out (FIFO) order
  semaphore.acquire() 
  
  // Releases a permit, returning it into this semaphore. 
  // Resumes the first suspending acquirer if there is one at the point of invocation
  semaphore.release()
}