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日志输出，空指针导致程序出错-测试获取帧

This commit is contained in:
lijun 2025-01-15 23:54:43 +08:00
parent 6a63d53117
commit dea8f6e113
2 changed files with 7 additions and 6 deletions
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8
handler/tool.go
View File

@ -187,6 +187,10 @@ func subscribeAndHandleMessagesV3(ws *websocket.Conn, device_id int) {
goto end
}
c = count
err4 := img.Close()
if err4 != nil {
log.Printf("close img err:%v", err)
}
}
} else {
//每秒发送一次心跳检测
@ -201,10 +205,6 @@ func subscribeAndHandleMessagesV3(ws *websocket.Conn, device_id int) {
}
time.Sleep(100 * time.Millisecond)
t_count++
err := img.Close()
if err != nil {
log.Printf("close img err:%v", err)
}
}
end:

5
service/tool.go
View File

@ -50,11 +50,12 @@ func GetDeviceCurrentFrame(deviceId int) (gocv.Mat, int) {
//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", deviceId)
log.Printf("DeviceRWMap 存储的不是 *sync.RWMutex 类型，device_id: %d \n", deviceId)
return gocv.NewMat(), -1
}
mutex.RLock()
@ -66,7 +67,7 @@ func GetDeviceCurrentFrame(deviceId int) (gocv.Mat, int) {
}
frame, ok := frameIface.(gocv.Mat)
if !ok {
log.Printf("DeviceCurrentFrameMap 存储的不是 gocv.Mat 类型，device_id: %d", deviceId)
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 {