initial commit, 4.5 stable

core/extension/gdextension_manager.h

@@ -0,0 +1,101 @@
+/**************************************************************************/
+/*  gdextension_manager.h                                                 */
+/**************************************************************************/
+/*                         This file is part of:                          */
+/*                             GODOT ENGINE                               */
+/*                        https://godotengine.org                         */
+/**************************************************************************/
+/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
+/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
+/*                                                                        */
+/* Permission is hereby granted, free of charge, to any person obtaining  */
+/* a copy of this software and associated documentation files (the        */
+/* "Software"), to deal in the Software without restriction, including    */
+/* without limitation the rights to use, copy, modify, merge, publish,    */
+/* distribute, sublicense, and/or sell copies of the Software, and to     */
+/* permit persons to whom the Software is furnished to do so, subject to  */
+/* the following conditions:                                              */
+/*                                                                        */
+/* The above copyright notice and this permission notice shall be         */
+/* included in all copies or substantial portions of the Software.        */
+/*                                                                        */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,        */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF     */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY   */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,   */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE      */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                 */
+/**************************************************************************/
+
+#pragma once
+
+#include "core/extension/gdextension.h"
+
+class GDExtensionManager : public Object {
+	GDCLASS(GDExtensionManager, Object);
+
+	int32_t level = -1;
+	HashMap<String, Ref<GDExtension>> gdextension_map;
+	HashMap<String, String> gdextension_class_icon_paths;
+
+	bool startup_callback_called = false;
+	bool shutdown_callback_called = false;
+
+	static void _bind_methods();
+
+	static inline GDExtensionManager *singleton = nullptr;
+
+public:
+	enum LoadStatus {
+		LOAD_STATUS_OK,
+		LOAD_STATUS_FAILED,
+		LOAD_STATUS_ALREADY_LOADED,
+		LOAD_STATUS_NOT_LOADED,
+		LOAD_STATUS_NEEDS_RESTART,
+	};
+
+private:
+	LoadStatus _load_extension_internal(const Ref<GDExtension> &p_extension, bool p_first_load);
+	void _finish_load_extension(const Ref<GDExtension> &p_extension);
+	LoadStatus _unload_extension_internal(const Ref<GDExtension> &p_extension);
+
+#ifdef TOOLS_ENABLED
+	static void _reload_all_scripts();
+#endif
+
+public:
+	LoadStatus load_extension(const String &p_path);
+	LoadStatus load_extension_with_loader(const String &p_path, const Ref<GDExtensionLoader> &p_loader);
+	LoadStatus reload_extension(const String &p_path);
+	LoadStatus unload_extension(const String &p_path);
+	bool is_extension_loaded(const String &p_path) const;
+	Vector<String> get_loaded_extensions() const;
+	Ref<GDExtension> get_extension(const String &p_path);
+
+	bool class_has_icon_path(const String &p_class) const;
+	String class_get_icon_path(const String &p_class) const;
+
+	void initialize_extensions(GDExtension::InitializationLevel p_level);
+	void deinitialize_extensions(GDExtension::InitializationLevel p_level);
+
+#ifdef TOOLS_ENABLED
+	void track_instance_binding(void *p_token, Object *p_object);
+	void untrack_instance_binding(void *p_token, Object *p_object);
+#endif
+
+	static GDExtensionManager *get_singleton();
+
+	void load_extensions();
+	void reload_extensions();
+	bool ensure_extensions_loaded(const HashSet<String> &p_extensions);
+
+	void startup();
+	void shutdown();
+	void frame();
+
+	GDExtensionManager();
+	~GDExtensionManager();
+};
+
+VARIANT_ENUM_CAST(GDExtensionManager::LoadStatus)