move actor to pkg

cmd/cart/disk-storage.go

@@ -0,0 +1,73 @@
+package main
+
+import (
+	"encoding/gob"
+	"time"
+)
+
+func init() {
+
+	gob.Register(map[uint64]int64{})
+}
+
+type DiskStorage struct {
+	stateFile string
+	lastSave  time.Time
+	LastSaves map[uint64]time.Time
+}
+
+func NewDiskStorage(stateFile string) (*DiskStorage, error) {
+	ret := &DiskStorage{
+		stateFile: stateFile,
+		LastSaves: make(map[uint64]time.Time),
+	}
+	//err := ret.loadState()
+	return ret, nil
+}
+
+// func saveMessages(_ interface{}, _ CartId) error {
+// 	// No-op: legacy event log persistence removed in oneof refactor.
+// 	return nil
+// }
+
+// func getCartPath(id string) string {
+// 	return fmt.Sprintf("data/%s.prot", id)
+// }
+
+// func loadMessages(_ Grain, _ CartId) error {
+// 	// No-op: legacy replay removed in oneof refactor.
+// 	return nil
+// }
+
+// func (s *DiskStorage) saveState() error {
+// 	tmpFile := s.stateFile + "_tmp"
+// 	file, err := os.Create(tmpFile)
+// 	if err != nil {
+// 		return err
+// 	}
+// 	defer file.Close()
+// 	err = gob.NewEncoder(file).Encode(s.LastSaves)
+// 	if err != nil {
+// 		return err
+// 	}
+// 	os.Remove(s.stateFile + ".bak")
+// 	os.Rename(s.stateFile, s.stateFile+".bak")
+// 	return os.Rename(tmpFile, s.stateFile)
+// }
+
+// func (s *DiskStorage) loadState() error {
+// 	file, err := os.Open(s.stateFile)
+// 	if err != nil {
+// 		return err
+// 	}
+// 	defer file.Close()
+// 	return gob.NewDecoder(file).Decode(&s.LastSaves)
+// }
+
+func (s *DiskStorage) Store(id CartId, _ *CartGrain) error {
+	// With the removal of the legacy message log, we only update the timestamp.
+	ts := time.Now()
+	s.LastSaves[uint64(id)] = ts
+	s.lastSave = ts
+	return nil
+}