test connection pools

tcp-connection.go

@@ -96,7 +96,7 @@ func (c *Connection) CallAsync(msg FrameType, payload []byte, ch chan<- FrameWit
 	}(MakeFrameWithPayload(msg, 1, payload))
 
 	c.count++
-	return conn, nil
+	return conn, err
 }
 
 func (c *Connection) Call(msg FrameType, data []byte) (*FrameWithPayload, error) {
@@ -107,14 +107,14 @@ func (c *Connection) Call(msg FrameType, data []byte) (*FrameWithPayload, error)
 		return nil, err
 	}
 
-	defer c.pool.Put(conn, nil) // conn.Close()
+	defer c.pool.Put(conn, err) // conn.Close()
 	defer close(ch)
 
 	select {
 	case ret := <-ch:
 		return &ret, nil
 	case <-time.After(MaxCallDuration):
-		return nil, fmt.Errorf("timeout")
+		return nil, fmt.Errorf("timeout waiting for frame")
 	}
 }
 
@@ -169,22 +169,21 @@ func (c *Connection) Listen() (*GenericListener, error) {
 }
 
 const (
-	MaxCallDuration = 500 * time.Millisecond
+	MaxCallDuration   = 300 * time.Millisecond
+	ListenerKeepalive = 5 * time.Second
 )
 
 func (l *GenericListener) HandleConnection(conn net.Conn) {
-	ch := make(chan FrameWithPayload, 1)
-	conn.SetReadDeadline(time.Now().Add(MaxCallDuration))
-	go WaitForFrame(conn, ch)
-	select {
-	case frame := <-ch:
+	for !l.StopListener {
+		ch := make(chan FrameWithPayload, 1)
+		//conn.SetReadDeadline(time.Now().Add(MaxCallDuration))
+		go WaitForFrame(conn, ch)
+		frame := <-ch
 		err := l.HandleFrame(conn, &frame)
 		if err != nil {
 			log.Fatalf("Error in handler: %v\n", err)
 		}
-	case <-time.After(MaxCallDuration):
-		close(ch)
-		log.Printf("Timeout waiting for frame\n")
+
 	}
 }
 
@@ -200,13 +199,15 @@ func (l *GenericListener) HandleFrame(conn net.Conn, frame *FrameWithPayload) er
 			defer close(resultChan)
 			err := handler(frame, resultChan)
 			if err != nil {
-				resultChan <- MakeFrameWithPayload(frame.Type, 500, []byte(err.Error()))
+				errFrame := MakeFrameWithPayload(frame.Type, 500, []byte(err.Error()))
+				SendFrame(conn, &errFrame)
 				log.Printf("Handler returned error: %s", err)
+				return
 			}
 			result := <-resultChan
 			err = SendFrame(conn, &result)
 			if err != nil {
-				log.Fatalf("Error sending frame: %s\n", err)
+				log.Printf("Error sending frame: %s", err)
 			}
 		}()
 	} else {