89 lines
2.5 KiB
Go
89 lines
2.5 KiB
Go
package connect
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import (
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"fmt"
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"os"
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"os/exec"
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"sync"
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"time"
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"FireLeave_tool/logger"
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)
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var (
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InferenceProcesses sync.Map // key: deviceUUID string, value: *exec.Cmd
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// 记录最后一次收到心跳的时间
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inferenceLastHeartbeat sync.Map // key: deviceUUID string, value: time.Time
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)
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// UpdateInferenceHeartbeat 每收到一帧 /video/post 就调用这个
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func UpdateInferenceHeartbeat(deviceUUID string) {
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inferenceLastHeartbeat.Store(deviceUUID, time.Now())
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}
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// ShouldRestartInference 判断是否需要重启推理程序
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func ShouldRestartInference(deviceUUID string) bool {
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val, ok := inferenceLastHeartbeat.Load(deviceUUID)
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if !ok {
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return true // 从未收到过心跳，肯定要启动
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}
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last := val.(time.Time)
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return time.Since(last) > 85*time.Second
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}
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// StopInferenceProcess 停止推理进程（供 main 和 DeviceManager 调用）
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func StopInferenceProcess(deviceUUID string) {
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if raw, ok := InferenceProcesses.Load(deviceUUID); ok {
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if cmd, ok := raw.(*exec.Cmd); ok && cmd.Process != nil {
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logger.Logger.Printf("正在停止推理进程 (DeviceUUID=%s, PID=%d)", deviceUUID, cmd.Process.Pid)
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cmd.Process.Kill()
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cmd.Wait()
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}
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InferenceProcesses.Delete(deviceUUID)
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}
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}
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// StartInferenceProcess 重启推理程序（保持原端口！）
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func StartInferenceProcess(deviceData *DeviceData) {
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StopInferenceProcess(deviceData.DeviceUUID)
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port, err := GlobalPortManager.GetPort(deviceData.DeviceUUID)
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if err != nil {
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logger.Logger.Printf("获取端口失败，无法重启推理程序 (DeviceUUID=%s): %v", deviceData.DeviceUUID, err)
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return
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}
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detectAreaStr := ProcessDetectAreaForInference(deviceData.DetectArea)
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inferenceCmd := exec.Command(
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"./yolov5",
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"-s", deviceData.CameraRTSP,
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"-m", "model",
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"-c", deviceData.DeviceUUID,
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"-p", fmt.Sprintf("%d", port),
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"-w", detectAreaStr,
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"-r", fmt.Sprintf("%d", deviceData.Confidence),
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)
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inferenceCmd.Stdout = os.Stdout
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inferenceCmd.Stderr = os.Stderr
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logger.Logger.Printf("正在重启推理程序 (使用原端口 %d): %v", port, inferenceCmd.Args)
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if err := inferenceCmd.Start(); err != nil {
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logger.Logger.Printf("推理程序重启失败 (DeviceUUID=%s): %v", deviceData.DeviceUUID, err)
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return
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}
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// 保存进程对象
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InferenceProcesses.Store(deviceData.DeviceUUID, inferenceCmd)
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logger.Logger.Printf("推理程序已成功重启，PID=%d (DeviceUUID=%s, Port=%d)",
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inferenceCmd.Process.Pid, deviceData.DeviceUUID, port)
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// 重启后立即刷新一次心跳，防止 30s 检测又触发
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UpdateInferenceHeartbeat(deviceData.DeviceUUID)
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}
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