add using atomic

store/memory/memory.go

@@ -4,7 +4,7 @@ import (
 	"context"
 	"sort"
 	"strings"
-	"sync"
+	"sync/atomic"
 	"time"
 
 	cache "github.com/patrickmn/go-cache"
@@ -40,8 +40,7 @@ type memoryStore struct {
 	funcDelete  store.FuncDelete
 	store       *cache.Cache
 	opts        store.Options
-	isConnected bool
-	mutex       sync.Mutex
+	isConnected atomic.Int32
 }
 
 func (m *memoryStore) key(prefix, key string) string {
@@ -277,8 +276,6 @@ func (m *memoryStore) fnList(ctx context.Context, opts ...store.ListOption) ([]s
 }
 
 func (m *memoryStore) connect(ctx context.Context) error {
-	m.mutex.Lock()
-	defer m.mutex.Unlock()
-	m.isConnected = true
+	m.isConnected.CompareAndSwap(0, 1)
 	return nil
 }