GainSpan Wi-Fi library see: http://mbed.org/users/gsfan/notebook/gainspan_wifi/
Dependents: GSwifi_httpd GSwifi_websocket GSwifi_tcpclient GSwifi_tcpserver ... more
Fork of GSwifi by
GainSpan Wi-Fi library
The GS1011 is an ultra low power 802.11b wireless module from GainSpan.
see: http://mbed.org/users/gsfan/notebook/gainspan_wifi/
ゲインスパン Wi-Fi モジュール ライブラリ
ゲインスパン社の低電力 Wi-Fiモジュール(無線LAN) GS1011 シリーズ用のライブラリです。
解説: http://mbed.org/users/gsfan/notebook/gainspan_wifi/
Diff: GSFunctionPointer.h
- Revision:
- 26:b347ee3a1087
- Child:
- 27:5802e39041c5
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/GSFunctionPointer.h Fri Feb 22 01:05:10 2013 +0000 @@ -0,0 +1,121 @@ +/* mbed Microcontroller Library + * Copyright (c) 2006-2012 ARM Limited + * + * 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. + */ +/* Copyright (C) 2013 gsfan, MIT License + * modifyed + */ +#ifndef GS_FUNCTIONPOINTER_H +#define GS_FUNCTIONPOINTER_H + +#include <string.h> + +namespace mbed { + +/** A class for storing and calling a pointer to a static or member void function + */ +class GSFunctionPointer { +public: + + /** Create a FunctionPointer, attaching a static function + * + * @param function The void static function to attach (default is none) + */ + GSFunctionPointer(void (*function)(int, int) = 0) { + attach(function); + } + + /** Create a FunctionPointer, attaching a member function + * + * @param object The object pointer to invoke the member function on (i.e. the this pointer) + * @param function The address of the void member function to attach + */ + template<typename T> + GSFunctionPointer(T *object, void (T::*member)(int, int)) { + attach(object, member); + } + + /** Attach a static function + * + * @param function The void static function to attach (default is none) + */ + void attach(void (*function)(int, int) = 0) { + _function = function; + _membercaller = NULL; + } + + /** Attach a member function + * + * @param object The object pointer to invoke the member function on (i.e. the this pointer) + * @param function The address of the void member function to attach + */ + template<typename T> + void attach(T *object, void (T::*member)(int, int)) { + _object = static_cast<void*>(object); + memcpy(_member, (char*)&member, sizeof(member)); + _membercaller = &GSFunctionPointer::membercaller<T>; + _function = NULL; + } + + /** Call the attached static or member function + */ + int call(int a, int b) { + if (_function != NULL) { + _function(a, b); + return 0; + } else + if (_membercaller != NULL) { + _membercaller(_object, _member, a, b); + return 0; + } + return -1; + } + + void detach() { + _function = NULL; + _membercaller = NULL; + } + + GSFunctionPointer &operator= (GSFunctionPointer &gsfp) { + _function = gsfp._function; + _object = gsfp._object; + memcpy(_member, gsfp._member, sizeof(_member)); + _membercaller = gsfp._membercaller; + return *this; + } + +private: + template<typename T> + static void membercaller(void *object, char *member, int a, int b) { + T* o = static_cast<T*>(object); + void (T::*m)(int, int); + memcpy((char*)&m, member, sizeof(m)); + (o->*m)(a, b); + } + + void (*_function)(int, int); // static function pointer - 0 if none attached + void *_object; // object this pointer - 0 if none attached + char _member[16]; // raw member function pointer storage - converted back by registered _membercaller + void (*_membercaller)(void*, char*, int, int); // registered membercaller function to convert back and call _member on _object +}; + +} // namespace mbed + +#endif