From cca030726d1a86c68b9175dd9fda2cc482a4a543 Mon Sep 17 00:00:00 2001
From: wyc <1104749580@qq.com>
Date: Fri, 24 Jul 2026 18:09:36 +0800
Subject: [PATCH] 3D

---
 psc_global_include/Singleton.hpp | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/psc_global_include/Singleton.hpp b/psc_global_include/Singleton.hpp
index 70e2179..4eefc79 100644
--- a/psc_global_include/Singleton.hpp
+++ b/psc_global_include/Singleton.hpp
@@ -4,13 +4,26 @@ template <typename Derived>
 class Singleton {
 public:
     static Derived* instance() {
-        static Derived instance;
-        return &instance;
+        auto& value = storage();
+        if (value == nullptr) {
+            value = new Derived();
+        }
+        return value;
+    }
+    static void destroy() {
+        auto& value = storage();
+        delete value;
+        value = nullptr;
     }
     Singleton(const Singleton&) = delete;
     Singleton& operator=(const Singleton&) = delete;
 protected:
     Singleton() = default;
     ~Singleton() = default;
+private:
+    static Derived*& storage() {
+        static Derived* value = nullptr;
+        return value;
+    }
 };
 } // namespace Psc