内存泄漏解决测试

handler/tool.go

@@ -113,7 +113,15 @@ func GetVideoStream(c *gin.Context) {
 	//设备流
 	c.Stream(func(w io.Writer) bool {
 		var count int
-		frame := gocv.NewMat()
+		var frame gocv.Mat
+		errCount := 0
+		for {
+			if errCount > 10 {
+				log.Printf("stream device:%d errCount > 10", deviceID)
+				return false
+			}
+			frame = gocv.NewMat()
+			cnt := service.GetDeviceCurrentFrameV2(&frame, deviceID)
 			defer func() {
 				//关闭帧
 				err4 := frame.Close()
@@ -121,13 +129,6 @@ func GetVideoStream(c *gin.Context) {
 					log.Printf("device:%d frame close err:%v", deviceID, err4)
 				}
 			}()
-		errCount := 0
-		for {
-			if errCount > 10 {
-				log.Printf("stream device:%d errCount > 10", deviceID)
-				return false
-			}
-			cnt := service.GetDeviceCurrentFrameV2(&frame, deviceID)
 			if cnt == count || cnt == -1 {
 				time.Sleep(50 * time.Millisecond)
 				log.Printf("stream device:%d,cnt =%d,count=%d,errCount=%d", deviceID, cnt, count, errCount)
@@ -146,6 +147,7 @@ func GetVideoStream(c *gin.Context) {
 				log.Printf("stream img encode err:%v", err2)
 				return false
 			}
+			defer img.Close()
 			frame_ := img.GetBytes()
 
 			_, err = w.Write([]byte("--frame\r\nContent-Type: image/jpeg\r\n\r\n"))
@@ -251,7 +253,7 @@ func subscribeAndHandleMessagesV3(ws *websocket.Conn, deviceId int) {
 				buf.Close()
 				t++
 				if t%50 == 0 {
-					log.Printf("device:%d send frame count:%d,img is closed", deviceId, c)
+					log.Printf("device:%d send frame count:%d,img and buf had been closed", deviceId, c)
 				}
 			}
 		} else {