/** * @file llcallbacklist.h * @brief A simple list of callback functions to call. * * $LicenseInfo:firstyear=2001&license=viewergpl$ * * Copyright (c) 2001-2009, Linden Research, Inc. * * Second Life Viewer Source Code * The source code in this file ("Source Code") is provided by Linden Lab * to you under the terms of the GNU General Public License, version 2.0 * ("GPL"), unless you have obtained a separate licensing agreement * ("Other License"), formally executed by you and Linden Lab. Terms of * the GPL can be found in doc/GPL-license.txt in this distribution, or * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2 * * There are special exceptions to the terms and conditions of the GPL as * it is applied to this Source Code. View the full text of the exception * in the file doc/FLOSS-exception.txt in this software distribution, or * online at * http://secondlifegrid.net/programs/open_source/licensing/flossexception * * By copying, modifying or distributing this software, you acknowledge * that you have read and understood your obligations described above, * and agree to abide by those obligations. * * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY, * COMPLETENESS OR PERFORMANCE. * $/LicenseInfo$ */ #ifndef LL_LLCALLBACKLIST_H #define LL_LLCALLBACKLIST_H #include "llstl.h" class LLCallbackList { public: typedef void (*callback_t)(void*); LLCallbackList(); ~LLCallbackList(); void addFunction( callback_t func, void *data = NULL ); // register a callback, which will be called as func(data) BOOL containsFunction( callback_t func, void *data = NULL ); // true if list already contains the function/data pair BOOL deleteFunction( callback_t func, void *data = NULL ); // removes the first instance of this function/data pair from the list, false if not found void callFunctions(); // calls all functions void deleteAllFunctions(); static void test(); protected: // Use a list so that the callbacks are ordered in case that matters typedef std::pair<callback_t,void*> callback_pair_t; typedef std::list<callback_pair_t > callback_list_t; callback_list_t mCallbackList; }; extern LLCallbackList gIdleCallbacks; #endif