Исходники и презентации

lessons/channels/increment_with_mutex/main.go

@@ -0,0 +1,27 @@
+package main
+
+import (
+	"fmt"
+	"sync"
+)
+
+func main() {
+	mutex := sync.Mutex{}
+	wg := sync.WaitGroup{}
+	wg.Add(2)
+
+	value := 0
+	for i := 0; i < 2; i++ {
+		go func() {
+			defer wg.Done()
+
+			mutex.Lock()
+			value++
+			mutex.Unlock()
+		}()
+	}
+
+	wg.Wait()
+
+	fmt.Println(value)
+}