add configurable clear interval

storage/ram.go

@@ -6,8 +6,9 @@ import (
 	"time"
 )
 
-func NewRamStore() Store {
+func NewRamStore(clearInterval time.Duration) Store {
 	store := &ram{
+		clearInterval: clearInterval,
 		passwords:     make(map[string]entry),
 		lock:          sync.Mutex{},
 		close:         make(chan bool),
@@ -18,6 +19,7 @@ func NewRamStore() Store {
 }
 
 type ram struct {
+	clearInterval time.Duration
 	passwords     map[string]entry
 	lock          sync.Mutex
 	close         chan bool
@@ -64,7 +66,7 @@ func (store *ram) Close() error {
 }
 
 func (store *ram) clearExpired() error {
-	ticker := time.NewTicker(20 * time.Second)
+	ticker := time.NewTicker(store.clearInterval)
 	defer ticker.Stop()
 
 	for {

storage/storage.go

@@ -30,10 +30,10 @@ func NewStore() (Store, error) {
 
 	switch storeType {
 	case "ram":
-		return NewRamStore(), nil
+		return NewRamStore(20 * time.Second), nil
 
 	default:
 		log.Printf("No PASSED_STORE_TYPE provided, defaulting to memory store.")
-		return NewRamStore(), nil
+		return NewRamStore(20 * time.Second), nil
 	}
 }