add singleton wrap

cmake/basic.cmake

@@ -36,3 +36,4 @@ enable_testing()
 add_test(basic_demo example/basic_demo)
 add_test(ability_manager_test example/ability_manager_test)
 add_test(extension_test example/extension_test)
+add_test(singleton_test example/singleton_test)

example/CMakeLists.txt

@@ -15,3 +15,6 @@ target_link_libraries(ui_ability_test ${PROJECT_NAME})
 
 add_executable(app_ability_test ./app_ability_test.cpp)
 target_link_libraries(app_ability_test ${PROJECT_NAME})
+
+add_executable(singleton_test ./singleton_test.cpp)
+target_link_libraries(singleton_test ${PROJECT_NAME})

example/singleton_test.cpp

@@ -0,0 +1,24 @@
+/**
+ * @file singleton_test.cpp
+ * @author Forairaaaaa
+ * @brief
+ * @version 0.1
+ * @date 2024-09-30
+ *
+ * @copyright Copyright (c) 2024
+ *
+ */
+#include <cstdio>
+#include <mooncake.h>
+
+using namespace mooncake;
+
+int main()
+{
+    printf("app name: %zu\n", GetMooncake().getAppNum());
+
+    DestroyMooncake();
+    GetMooncake();
+
+    return 0;
+}

src/mooncake.cpp

@@ -165,3 +165,33 @@ void Mooncake::resetExtensionManager()
 {
     _extension_ability_manager.reset();
 }
+
+/* -------------------------------------------------------------------------- */
+/*                                  Singleton                                 */
+/* -------------------------------------------------------------------------- */
+// 懒加载单例
+
+static std::unique_ptr<Mooncake> _mooncake_instance;
+
+/**
+ * @brief 获取 Mooncake 单例
+ *
+ * @return Mooncake&
+ */
+Mooncake& mooncake::GetMooncake()
+{
+    if (!_mooncake_instance) {
+        _mooncake_instance = std::make_unique<Mooncake>();
+        _mooncake_instance->logAboutMsg();
+    }
+    return *_mooncake_instance;
+}
+
+/**
+ * @brief 销毁 Mooncake 单例
+ *
+ */
+void mooncake::DestroyMooncake()
+{
+    _mooncake_instance.reset();
+}

src/mooncake.h

@@ -150,4 +150,22 @@ class Mooncake {
     AbilityManager* get_extension_ability_manager();
 };
 
+/* -------------------------------------------------------------------------- */
+/*                                  Singleton                                 */
+/* -------------------------------------------------------------------------- */
+// 全局单例
+
+/**
+ * @brief 获取 Mooncake 单例
+ *
+ * @return Mooncake&
+ */
+Mooncake& GetMooncake();
+
+/**
+ * @brief 销毁 Mooncake 单例
+ *
+ */
+void DestroyMooncake();
+
 } // namespace mooncake