内存泄漏问题,注释日志输出

go.mod

@@ -11,6 +11,7 @@ require (
 	github.com/google/uuid v1.6.0
 	github.com/gorilla/websocket v1.5.3
 	github.com/robfig/cron/v3 v3.0.1
+	github.com/ulule/deepcopier v0.0.0-20200430083143-45decc6639b6
 	gocv.io/x/gocv v0.39.0
 	gorm.io/driver/mysql v1.5.7
 	gorm.io/driver/postgres v1.5.11

go.sum

@@ -106,10 +106,10 @@ github.com/twitchyliquid64/golang-asm v0.15.1 h1:SU5vSMR7hnwNxj24w34ZyCi/FmDZTkS
 github.com/twitchyliquid64/golang-asm v0.15.1/go.mod h1:a1lVb/DtPvCB8fslRZhAngC2+aY1QWCk3Cedj/Gdt08=
 github.com/ugorji/go/codec v1.2.12 h1:9LC83zGrHhuUA9l16C9AHXAqEV/2wBQ4nkvumAE65EE=
 github.com/ugorji/go/codec v1.2.12/go.mod h1:UNopzCgEMSXjBc6AOMqYvWC1ktqTAfzJZUZgYf6w6lg=
+github.com/ulule/deepcopier v0.0.0-20200430083143-45decc6639b6 h1:TtyC78WMafNW8QFfv3TeP3yWNDG+uxNkk9vOrnDu6JA=
+github.com/ulule/deepcopier v0.0.0-20200430083143-45decc6639b6/go.mod h1:h8272+G2omSmi30fBXiZDMkmHuOgonplfKIKjQWzlfs=
 gocv.io/x/gocv v0.39.0 h1:vWHupDE22LebZW6id2mVeT767j1YS8WqGt+ZiV7XJXE=
 gocv.io/x/gocv v0.39.0/go.mod h1:zYdWMj29WAEznM3Y8NsU3A0TRq/wR/cy75jeUypThqU=
-gocv.io/x/gocv v0.40.0 h1:kGBu/UVj+dO6A9dhQmGOnCICSL7ke7b5YtX3R3azdXI=
-gocv.io/x/gocv v0.40.0/go.mod h1:zYdWMj29WAEznM3Y8NsU3A0TRq/wR/cy75jeUypThqU=
 golang.org/x/arch v0.0.0-20210923205945-b76863e36670/go.mod h1:5om86z9Hs0C8fWVUuoMHwpExlXzs5Tkyp9hOrfG7pp8=
 golang.org/x/arch v0.8.0 h1:3wRIsP3pM4yUptoR96otTUOXI367OS0+c9eeRi9doIc=
 golang.org/x/arch v0.8.0/go.mod h1:FEVrYAQjsQXMVJ1nsMoVVXPZg6p2JE2mx8psSWTDQys=

handler/tool.go

@@ -34,7 +34,7 @@ func SetUpToolGroup(router *gin.Engine) {
 }
 
 // 跨域访问：cross  origin resource share
-func CorsHandler() gin.HandlerFunc {
+func CrosHandler() gin.HandlerFunc {
 	return func(context *gin.Context) {
 		//method := context.Request.Method
 		context.Writer.Header().Set("Access-Control-Allow-Origin", "*")
@@ -68,17 +68,17 @@ func GetVideoStream(c *gin.Context) {
 	var req videoStreamReq
 	id, _ := c.Get("id")
 	id1 := id.(int)
-	//将query参数绑定到结构体
+	//校验权限
+	device := service.GetDevice(req.ID, id1)
+	if device.ID == 0 {
+		c.JSON(400, gin.H{"error": "device not exist"})
+		return
+	}
+
 	if err := c.ShouldBind(&req); err != nil {
 		c.JSON(400, gin.H{"error": err.Error()})
 		return
 	} else {
-		//校验权限
-		device := service.GetDevice(req.ID, id1)
-		if device.ID == 0 {
-			c.JSON(400, gin.H{"error": "device not exist"})
-			return
-		}
 		//查看id是否存在
 		index := -1
 		for _, device := range proto.Config.DeviceInfo {
@@ -99,20 +99,14 @@ func GetVideoStream(c *gin.Context) {
 		//设备流
 		c.Stream(func(w io.Writer) bool {
 			var count int
-			var frame gocv.Mat
 			for {
-				cnt := service.GetDeviceCurrentFrameV2(&frame, req.ID)
+				frame, cnt := service.GetDeviceCurrentFrame(req.ID)
 				if cnt == count {
 					time.Sleep(50 * time.Millisecond)
 					continue
 				}
 				//gocv.Matrix转为jpeg
-				img, err2 := gocv.IMEncode(".jpg", frame)
-				if err2 != nil {
-					fmt.Printf("img encode err:%v", err2)
-					time.Sleep(50 * time.Millisecond)
-					continue
-				}
+				img, err := gocv.IMEncode(".jpg", frame)
 				frame_ := img.GetBytes()
 
 				_, err = w.Write([]byte("--frame\r\nContent-Type: image/jpeg\r\n\r\n"))
@@ -167,15 +161,14 @@ func subscribeAndHandleMessagesV3(ws *websocket.Conn, device_id int) {
 	//图片计数器
 	count := 0
 	//定时器，发送计数器
-	tCount := 0
-	//从service获取当前帧
-	var img gocv.Mat
+	t_count := 0
 	for {
-		c := service.GetDeviceCurrentFrameV2(&img, device_id)
+		//从service获取当前帧
+		img, c := service.GetDeviceCurrentFrameV3(device_id)
 		if c != count {
 			//将img转[]byte
 			if img.Empty() {
-				log.Printf("device:%d img is empty! count=%d", device_id, c)
+				log.Printf("device:%d img is empty! count = %d \n", device_id, c)
 			} else {
 				//gocv.Matrix转为jpeg
 				buf, err := gocv.IMEncode(".jpg", img)
@@ -200,23 +193,19 @@ func subscribeAndHandleMessagesV3(ws *websocket.Conn, device_id int) {
 			}
 		} else {
 			//每秒发送一次心跳检测
-			if tCount%10 == 0 {
+			if t_count%10 == 0 {
 				err := ws.WriteControl(websocket.PingMessage, []byte{}, time.Now().Add(time.Second))
 				if err != nil {
 					log.Printf("Connection check failed:%v", err)
 					worker.SetRedisSetRemove(online_conn_key, con_id)
 					break
+				} else {
+					log.Printf("Connection check success")
 				}
 			}
 		}
 		time.Sleep(100 * time.Millisecond)
-		tCount++
-	}
-
-	//关闭img
-	err := img.Close()
-	if err != nil {
-		log.Printf("img close err:%v", err)
+		t_count++
 	}
 
 	// 查看是否还有其他连接，没有则设置 is_play 为 0

main.go

@@ -10,6 +10,7 @@ import (
 	"github.com/gin-gonic/gin"
 	"github.com/golang-jwt/jwt"
 	"github.com/robfig/cron/v3"
+	"gocv.io/x/gocv"
 	"log"
 	"runtime"
 	"strconv"
@@ -34,7 +35,7 @@ func main() {
 	if err0 != nil {
 		panic("failed to connect redis:" + err0.Error())
 	}
-	r.Use(handler.CorsHandler())
+	r.Use(handler.CrosHandler())
 	r.Use(JWTAuthMiddleware()) // 使用 JWT 认证中间件
 	handler.SetUpToolGroup(r)  // Tool
 	err := worker.InitRedis()
@@ -70,14 +71,13 @@ func init() {
 	if err != nil {
 		panic("failed to read config file:" + err.Error())
 	}
-	service.DeviceFrameCount = make(map[int]int)
 	for _, device := range proto.Config.DeviceInfo {
 		//service.DeviceRWMap[device.ID] = sync.RWMutex{}
 		//service.DeviceCurrentFrameMap[device.ID] = gocv.NewMat()
 		//service.DeviceIsGettingFrame[device.ID] = false
 		service.DeviceRWMap.Store(device.ID, &sync.RWMutex{})
-		//service.DeviceCurrentFrameMap.Store(device.ID, gocv.NewMat())
-		service.DeviceFrameCount[device.ID] = 0
+		service.DeviceCurrentFrameMap.Store(device.ID, gocv.NewMat())
+		service.DeviceFrameCount.Store(device.ID, 0)
 		service.DeviceIsGettingFrame.Store(device.ID, false)
 	}
 }
@@ -99,11 +99,17 @@ func ReadConfigAndSetSystem() {
 		if !ok {
 			//说明没有这个设备，需初始化添加
 			service.DeviceRWMap.Store(device.ID, &sync.RWMutex{})
-			//service.DeviceCurrentFrameMap.Store(device.ID, gocv.NewMat())
-			service.DeviceFrameCount[device.ID] = 0
+			service.DeviceCurrentFrameMap.Store(device.ID, gocv.NewMat())
+			service.DeviceFrameCount.Store(device.ID, 0)
 			service.DeviceIsGettingFrame.Store(device.ID, false)
 		}
 		if is_get == false && device.NextStop == false { //如果设备流已经停止且不暂停，则开启
+			switch device.ID {
+			case 1:
+				service.Device1CurrentFrame = gocv.NewMat()
+			case 50:
+				service.Device50CurrentFrame = gocv.NewMat()
+			}
 			go service.GetVideoStream(device.ID)
 			log.Printf("device:%d has started!\n", device.ID)
 		}

service/tool.go

@@ -15,15 +15,45 @@ import (
 )
 
 var DeviceRWMap = &sync.Map{}
-
-// var DeviceCurrentFrameMap = &sync.Map{}
-var DeviceFrameCount map[int]int
+var DeviceCurrentFrameMap = &sync.Map{}
+var DeviceFrameCount = &sync.Map{}
 var DeviceIsGettingFrame = &sync.Map{}
 var Device1CurrentFrame gocv.Mat
 var Device50CurrentFrame gocv.Mat
-var Device73CurrentFrame gocv.Mat
 
-func SetDeviceCurrentFrame(frame *gocv.Mat, device_id int) error {
+func SetDeviceCurrentFrame(frame gocv.Mat, device_id int) error {
+	//获取读写锁
+	mutex_, ok := DeviceRWMap.Load(device_id)
+	if !ok {
+		return fmt.Errorf("设备:%s 读写锁不存在", device_id)
+	}
+	mutex := mutex_.(*sync.RWMutex)
+	mutex.Lock()
+	defer mutex.Unlock()
+	//获取前一帧，将前一帧释放
+	framePrev, ok := DeviceCurrentFrameMap.Load(device_id)
+	if ok {
+		frame_, ok2 := framePrev.(gocv.Mat)
+		if ok2 {
+			err2 := frame_.Close()
+			if err2 != nil {
+				log.Printf("设备:%d, 错误: 无法关闭帧\n", device_id)
+			}
+		}
+	}
+	//设置当前帧
+	DeviceCurrentFrameMap.Store(device_id, frame)
+	frame_count, ok := DeviceFrameCount.Load(device_id)
+	if !ok {
+		return fmt.Errorf("设备:%s 当前帧计数不存在", device_id)
+	}
+	frame_count_ := frame_count.(int)
+	frame_count_++
+	DeviceFrameCount.Store(device_id, frame_count_)
+	return nil
+}
+
+func SetDeviceCurrentFrameV2(frame *gocv.Mat, device_id int) error {
 	//获取读写锁
 	mutex_, ok := DeviceRWMap.Load(device_id)
 	if !ok {
@@ -35,28 +65,34 @@ func SetDeviceCurrentFrame(frame *gocv.Mat, device_id int) error {
 	//设置当前帧
 	switch device_id {
 	case 1:
+		//err := Device1CurrentFrame.Close()
+		//if err != nil {
+		//	log.Printf("设备:%d, 错误: 无法关闭帧\n", device_id)
+		//}
 		if Device1CurrentFrame.Empty() {
 			Device1CurrentFrame = gocv.NewMatWithSize((*frame).Rows(), (*frame).Cols(), (*frame).Type())
 		}
 		(*frame).CopyTo(&Device1CurrentFrame)
+		//err := deepcopier.Copy(*frame).To(&Device1CurrentFrame)
+		//if err != nil {
+		//	log.Printf("设备:%d, 错误: 无法设置帧,err: %s \n", device_id, err.Error())
+		//}
+		//查看帧状态
+		//log.Printf("frame:%v,Device1CurrentFrame:%v \n", (*frame).Empty(), Device1CurrentFrame.Empty())
+		//Device1CurrentFrame = *frame
 	case 50:
 		if Device50CurrentFrame.Empty() {
 			Device50CurrentFrame = gocv.NewMatWithSize((*frame).Rows(), (*frame).Cols(), (*frame).Type())
 		}
 		(*frame).CopyTo(&Device50CurrentFrame)
-	case 73:
-		if Device73CurrentFrame.Empty() {
-			Device73CurrentFrame = gocv.NewMatWithSize((*frame).Rows(), (*frame).Cols(), (*frame).Type())
-		}
-		(*frame).CopyTo(&Device73CurrentFrame)
 	}
-
-	frameCount, ok := DeviceFrameCount[device_id]
+	frame_count, ok := DeviceFrameCount.Load(device_id)
 	if !ok {
 		return fmt.Errorf("设备:%s 当前帧计数不存在", device_id)
 	}
-	frameCount++
-	DeviceFrameCount[device_id] = frameCount
+	frame_count_ := frame_count.(int)
+	frame_count_++
+	DeviceFrameCount.Store(device_id, frame_count_)
 	return nil
 }
 
@@ -79,33 +115,77 @@ func GetDeviceCurrentFrameV2(frame *gocv.Mat, deviceId int) int {
 	}
 	mutex.RLock()
 	defer mutex.RUnlock()
+	var frame_ gocv.Mat
 	//获取当前帧
-	switch deviceId {
-	case 1:
-		if frame.Empty() {
-			*frame = gocv.NewMatWithSize(Device1CurrentFrame.Rows(), Device1CurrentFrame.Cols(), Device1CurrentFrame.Type())
-		}
-		Device1CurrentFrame.CopyTo(frame)
-	case 50:
-		if frame.Empty() {
-			*frame = gocv.NewMatWithSize(Device50CurrentFrame.Rows(), Device50CurrentFrame.Cols(), Device50CurrentFrame.Type())
-		}
-		Device50CurrentFrame.CopyTo(frame)
-	case 73:
-		if frame.Empty() {
-			*frame = gocv.NewMatWithSize(Device73CurrentFrame.Rows(), Device73CurrentFrame.Cols(), Device73CurrentFrame.Type())
-		}
-		Device73CurrentFrame.CopyTo(frame)
-
-	}
-
-	frameCount, ok := DeviceFrameCount[deviceId]
+	frameIface, ok := DeviceCurrentFrameMap.Load(deviceId)
 	if !ok {
 		return -1
 	}
-	return frameCount
+	frame_, ok = frameIface.(gocv.Mat)
+	if !ok {
+		log.Printf("DeviceCurrentFrameMap 存储的不是 gocv.Mat 类型，device_id: %d \n", deviceId)
+	}
+	*frame = frame_
+	frame_countIface, ok := DeviceFrameCount.Load(deviceId)
+	if !ok {
+		return -1
+	}
+	frame_count, ok := frame_countIface.(int)
+	if !ok {
+		log.Printf("DeviceFrameCount 存储的不是 int 类型，device_id: %d", deviceId)
+	}
+	return frame_count
 }
 
+func GetDeviceCurrentFrameV3(deviceId int) (gocv.Mat, int) {
+	defer func() {
+		if err := recover(); err != nil {
+			log.Printf("设备:%d 错误: %v\n", deviceId, err)
+		}
+	}()
+
+	//获取读写锁
+	mutex_, ok := DeviceRWMap.Load(deviceId)
+	if !ok {
+		log.Printf("DeviceRWMap 读写锁不存在，device_id: %d \n", deviceId)
+		return gocv.NewMat(), -1
+	}
+	mutex, ok := mutex_.(*sync.RWMutex)
+	if !ok {
+		log.Printf("DeviceRWMap 存储的不是 *sync.RWMutex 类型，device_id: %d \n", deviceId)
+		return gocv.NewMat(), -1
+	}
+	mutex.RLock()
+	defer mutex.RUnlock()
+	//获取当前帧
+	var frame gocv.Mat
+	switch deviceId {
+	case 1:
+		frame = gocv.NewMatWithSize(Device1CurrentFrame.Rows(), Device1CurrentFrame.Cols(), Device1CurrentFrame.Type())
+		Device1CurrentFrame.CopyTo(&frame)
+		//查看帧状态
+		//log.Printf("frame:%v,Device1CurrentFrame:%v \n", frame.Empty(), Device1CurrentFrame.Empty())
+
+	case 50:
+		frame = gocv.NewMatWithSize(Device50CurrentFrame.Rows(), Device50CurrentFrame.Cols(), Device50CurrentFrame.Type())
+		Device50CurrentFrame.CopyTo(&frame)
+		//查看帧状态
+		//log.Printf("frame:%v,Device50CurrentFrame:%v\n", frame.Empty(), Device50CurrentFrame.Empty())
+
+	}
+
+	frame_countIface, ok := DeviceFrameCount.Load(deviceId)
+	if !ok {
+		return gocv.NewMat(), -1
+	}
+	frame_count, ok := frame_countIface.(int)
+	if !ok {
+		log.Printf("DeviceFrameCount 存储的不是 int 类型，device_id: %d", deviceId)
+	}
+	//查看地址
+	//log.Printf("frame:%p,Device1CurrentFrame:%p,Device50CurrentFrame:%p\n", &frame, &Device1CurrentFrame, &Device50CurrentFrame)
+	return frame, frame_count
+}
 func GetDeviceCurrentFrame(deviceId int) (gocv.Mat, int) {
 	defer func() {
 		if err := recover(); err != nil {
@@ -126,34 +206,24 @@ func GetDeviceCurrentFrame(deviceId int) (gocv.Mat, int) {
 	}
 	mutex.RLock()
 	defer mutex.RUnlock()
-	var ret gocv.Mat
-	if ret.Empty() {
-
-	}
 	//获取当前帧
-	switch deviceId {
-	case 1:
-		if ret.Empty() {
-			ret = gocv.NewMatWithSize(Device1CurrentFrame.Rows(), Device1CurrentFrame.Cols(), Device1CurrentFrame.Type())
-		}
-		Device1CurrentFrame.CopyTo(&ret)
-	case 50:
-		if ret.Empty() {
-			ret = gocv.NewMatWithSize(Device50CurrentFrame.Rows(), Device50CurrentFrame.Cols(), Device50CurrentFrame.Type())
-		}
-		Device50CurrentFrame.CopyTo(&ret)
-	case 73:
-		if ret.Empty() {
-			ret = gocv.NewMatWithSize(Device73CurrentFrame.Rows(), Device73CurrentFrame.Cols(), Device73CurrentFrame.Type())
-		}
-		Device73CurrentFrame.CopyTo(&ret)
-	}
-	frameCount, ok := DeviceFrameCount[deviceId]
+	frameIface, ok := DeviceCurrentFrameMap.Load(deviceId)
 	if !ok {
-		log.Printf("设备:%d 当前帧计数不存在\n", deviceId)
-		frameCount = -1
+		return gocv.NewMat(), -1
 	}
-	return ret, frameCount
+	frame, ok := frameIface.(gocv.Mat)
+	if !ok {
+		log.Printf("DeviceCurrentFrameMap 存储的不是 gocv.Mat 类型，device_id: %d \n", deviceId)
+	}
+	frame_countIface, ok := DeviceFrameCount.Load(deviceId)
+	if !ok {
+		return gocv.NewMat(), -1
+	}
+	frame_count, ok := frame_countIface.(int)
+	if !ok {
+		log.Printf("DeviceFrameCount 存储的不是 int 类型，device_id: %d", deviceId)
+	}
+	return frame, frame_count
 }
 
 func getVideoFrame(device proto.DeviceInfo) {
@@ -182,7 +252,6 @@ func getVideoFrame(device proto.DeviceInfo) {
 	lineType := 2
 	z := 0
 	var frame gocv.Mat
-	frame = gocv.NewMat()
 	for {
 		if device.LogFrame > 0 && z%device.LogFrame == 0 {
 			log.Printf("设备:%d 当前帧: %d\n", device.ID, z)
@@ -190,6 +259,7 @@ func getVideoFrame(device proto.DeviceInfo) {
 		if device.NextStop {
 			break
 		}
+		frame = gocv.NewMat()
 		ok := webcam.Read(&frame)
 		if !ok {
 			log.Printf("设备:%v 错误: 无法从视频流中读取帧\n", device)
@@ -208,17 +278,23 @@ func getVideoFrame(device proto.DeviceInfo) {
 			break
 		}
 		currentTime := time.Now().Format("2006-01-02 15:04:05")
-		gocv.PutText(&frame, currentTime, image.Point{X: 10, Y: 20}, font, fontScale, fontColor, lineType)
+		gocv.PutText(&frame, currentTime, image.Point{10, 20}, font, fontScale, fontColor, lineType)
 		//需要将帧付给全局变量
-		err3 := SetDeviceCurrentFrame(&frame, device.ID)
+		err3 := SetDeviceCurrentFrameV2(&frame, device.ID)
 		if err3 != nil {
 			log.Printf("设备:%d 错误: 无法设置当前帧,err:%s \n", device.ID, err3.Error())
 		}
 		z++
+		//关闭帧
+		err4 := frame.Close()
+		if err4 != nil {
+			log.Printf("设备:%d 错误: 无法关闭帧,err:%s \n", device.ID, err4.Error())
+		}
 	}
-	err2 := frame.Close()
-	if err2 != nil {
-		log.Printf("设备:%d 错误: 无法释放帧资源,err:%s \n", device.ID, err.Error())
+	//关闭帧
+	err4 := frame.Close()
+	if err4 != nil {
+		log.Printf("设备:%d 错误: 无法关闭帧,err:%s \n", device.ID, err4.Error())
 	}
 }