feat(errorHandle): add service error handling and recovery logic

Implement error handling mechanism with retry logic for failed services. Includes:
- ServiceControl struct to track service state
- HandleErrorProcess function to attempt service restarts
- Integration with monitor to automatically recover services
- Enhanced exception handling with status checks and monitoring restart

errorHandle/processor.go

@@ -0,0 +1,36 @@
+package errorHandle
+
+import (
+	"fmt"
+	"os/exec"
+	"time"
+
+	"Watchdog_Linux-systemd/postLog"
+)
+
+type ServiceStatusChecker func(serviceName string) bool
+
+func HandleErrorProcess(serviceName string, isServiceRunning ServiceStatusChecker) error {
+	postLog.Debug(fmt.Sprintf("[HandleErrorProcess] Start handle error process for service: %s", serviceName))
+	serviceControl := &ServiceControl{
+		ServiceName: serviceName,
+		RetryCount:  0,
+	}
+
+	for i := 0; i < 5; i++ {
+		serviceControl.RetryCount++
+		postLog.Debug(fmt.Sprintf("[HandleErrorProcess] Try to restart service '%s', retry count: %d", serviceName, serviceControl.RetryCount))
+		cmd := exec.Command("systemctl", "restart", serviceName)
+		err := cmd.Run()
+		if err == nil {
+			if isServiceRunning != nil && isServiceRunning(serviceName) {
+				return nil
+			}
+		}
+		time.Sleep(time.Duration(i+1) * time.Second)
+	}
+	serviceControl.ErrorType = "restart"
+	serviceControl.ErrorMsg = fmt.Sprintf("Failed to recover service '%s', retry count: %d", serviceName, serviceControl.RetryCount)
+	serviceControl.ErrorTime = time.Now()
+	return fmt.Errorf(serviceControl.ErrorMsg)
+}

errorHandle/vars.go

@@ -0,0 +1,13 @@
+package errorHandle
+
+import (
+	"time"
+)
+
+type ServiceControl struct {
+	ServiceName string
+	RetryCount 	int
+	ErrorType 	string
+	ErrorMsg 	string
+	ErrorTime 	time.Time
+}