Improve core module to take care of dir structures and db init

core/db.go

@@ -0,0 +1,58 @@
+package core
+
+import (
+	"sync"
+	"time"
+
+	"github.com/safing/portbase/database"
+	"github.com/safing/portbase/log"
+
+	"github.com/safing/portmaster/core/structure"
+)
+
+var (
+	maintenanceWg                sync.WaitGroup
+	maintenanceShortTickDuration = 10 * time.Minute
+	maintenanceLongTickDuration  = 1 * time.Hour
+)
+
+func startDB() error {
+	err := database.Initialize(dataDir, structure.Root())
+	if err == nil {
+		maintenanceWg.Add(1)
+		go maintenanceWorker()
+	}
+	return err
+}
+
+func stopDB() error {
+	maintenanceWg.Wait()
+	return database.Shutdown()
+}
+
+func maintenanceWorker() {
+	ticker := time.NewTicker(maintenanceShortTickDuration)
+	longTicker := time.NewTicker(maintenanceLongTickDuration)
+
+	for {
+		select {
+		case <-ticker.C:
+			err := database.Maintain()
+			if err != nil {
+				log.Errorf("database: maintenance error: %s", err)
+			}
+		case <-longTicker.C:
+			err := database.MaintainRecordStates()
+			if err != nil {
+				log.Errorf("database: record states maintenance error: %s", err)
+			}
+			err = database.MaintainThorough()
+			if err != nil {
+				log.Errorf("database: thorough maintenance error: %s", err)
+			}
+		case <-shuttingDown:
+			maintenanceWg.Done()
+			return
+		}
+	}
+}