Add example for idle

examples/idle_server_shutdown/main.go

@@ -0,0 +1,35 @@
+package main
+
+import (
+	"context"
+	"net/http"
+	"time"
+
+	"go.balki.me/anyhttp/idle"
+)
+
+func main() {
+	idler := idle.CreateIdler(10 * time.Second)
+
+	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
+		idler.Tick()
+		w.Write([]byte("Hey there!\n"))
+	})
+
+	http.HandleFunc("/job", func(w http.ResponseWriter, r *http.Request) {
+		go func() {
+			idler.Enter()
+			defer idler.Exit()
+
+			time.Sleep(15 * time.Second)
+		}()
+		w.Write([]byte("Job scheduled\n"))
+	})
+
+	server := http.Server{
+		Addr: ":8888",
+	}
+	go server.ListenAndServe()
+	idler.Wait()
+	server.Shutdown(context.TODO())
+}

idle/idle.go

@@ -37,17 +37,16 @@ func CreateIdler(timeout time.Duration) Idler {
 		for {
 			if i.active.Load() != 0 {
 				time.Sleep(timeout)
-			} else {
+				continue
-				t := *i.lastTick.Load()
-				now := time.Now()
-				dur := t.Add(timeout).Sub(now)
-				if dur == dur.Abs() {
-					time.Sleep(dur)
-				} else {
-					break
-				}
 			}
-
+			t := *i.lastTick.Load()
+			now := time.Now()
+			dur := t.Add(timeout).Sub(now)
+			if dur == dur.Abs() {
+				time.Sleep(dur)
+				continue
+			}
+			break
 		}
 		close(i.c)
 	}()