Function ExampleQueueWithContext

examples_test.go:185–214

Generate fibonacci sequence

()

// Generate fibonacci sequence
func ExampleQueueWithContext() {
	// fin returns function  that returns Fibonacci sequence up to n element,
	// it returns 0 after limit reached.
	fib := func(limit int) func() int {
		a, b, nTh := 0, 1, 1
		return func() int {
			if nTh > limit {
				return 0
			}

			nTh++
			a, b = b, a+b
			return a
		}
	}

	first10FibNumbers := make([]int, 10)
	incoming, err := harmony.QueueWithContext(context.Background(), fib(10))
	if err != nil {
		log.Printf("err: %v", err)
		return
	}

	for i := 0; i < cap(first10FibNumbers); i++ {
		first10FibNumbers[i] = <-incoming
	}

	fmt.Println(first10FibNumbers)
	// Output: [1 1 2 3 5 8 13 21 34 55]
}

func ExampleTeeWithDone() {
	done := make(chan struct{})