chore: 并入 iotlcm-app 历史到 app/（原提交 f40bda9）

app/server/internal/library/mcache/mcache.go

@@ -0,0 +1,46 @@
+// Package mcache
+// @Link  https://github.com/xiujiecn/xiu-admin
+// @Copyright  Copyright (c) 2025 LiXiujie
+// @Author  Lxj <li@example.com>
+// @License  https://github.com/xiujiecn/xiu-admin/blob/master/LICENSE
+// 内存缓存管理
+package mcache
+
+import (
+	"context"
+	"sync"
+	"time"
+
+	"github.com/gogf/gf/v2/os/gcache"
+)
+
+// cache 缓存驱动
+var (
+	mcache *gcache.Cache
+	mu     sync.Mutex
+)
+
+// Instance 缓存实例
+func Instance() *gcache.Cache {
+	if mcache == nil {
+		mu.Lock()
+		if mcache == nil {
+			mcache = gcache.NewWithAdapter(gcache.NewAdapterMemory())
+		}
+		mu.Unlock()
+	}
+	return mcache
+}
+
+func Set(ctx context.Context, key string, value interface{}, timeout time.Duration) error {
+	return Instance().Set(ctx, key, value, timeout)
+}
+
+func Get(ctx context.Context, key string) (interface{}, error) {
+	return Instance().Get(ctx, key)
+}
+
+func Remove(ctx context.Context, key string) error {
+	_, err := Instance().Remove(ctx, key)
+	return err
+}