initial import

concurrency/best-practices-multiplexer/main.go

@@ -0,0 +1,42 @@
+package main
+
+import (
+	"fmt"
+	"math/rand"
+	"time"
+)
+
+func printOut() <-chan string {
+	c := make(chan string)
+	go func() {
+		for i := 1; ; i++ {
+			c <- fmt.Sprintf("Print %v", i)
+			time.Sleep(time.Duration(rand.Intn(500)) * time.Millisecond)
+		}
+	}()
+	return c
+}
+
+func join(in1, in2 <-chan string) <-chan string {
+	out := make(chan string)
+	go func() {
+		for {
+			out <- <-in1
+		}
+	}()
+	go func() {
+		for {
+			out <- <-in2
+		}
+	}()
+	return out
+}
+
+func main() {
+	c1 := printOut()
+	c2 := printOut()
+	c3 := join(c1, c2)
+	for i := 1; i < 10; i++ {
+		fmt.Println(<-c3)
+	}
+}