Исходники и презентации

lessons/channels/producer_consumer/main.go

@@ -0,0 +1,51 @@
+package main
+
+import (
+	"fmt"
+	"sync"
+)
+
+func producer(ch chan int) {
+	defer close(ch)
+	for i := 0; i < 5; i++ {
+		ch <- i
+	}
+}
+
+func consumer(ch chan int) {
+
+	/*
+		for {
+			select {
+			case value, opened := <-ch:
+				if !opened {
+					return
+				}
+
+				fmt.Println(value)
+			}
+		}
+	*/
+
+	for value := range ch { // syntax sugar
+		fmt.Println(value)
+	}
+}
+
+func main() {
+	ch := make(chan int)
+	wg := sync.WaitGroup{}
+	wg.Add(2)
+
+	go func() {
+		defer wg.Done()
+		producer(ch)
+	}()
+
+	go func() {
+		defer wg.Done()
+		consumer(ch)
+	}()
+
+	wg.Wait()
+}