FRDM-K64F, Avnet M14A2A, Grove Shield, to create smart home system. In use with AT&Ts M2x & Flow.
Dependencies: mbed FXOS8700CQ MODSERIAL
FunctionPointer.h
00001 /* mbed Microcontroller Library 00002 * Copyright (c) 2006-2013 ARM Limited 00003 * 00004 * Licensed under the Apache License, Version 2.0 (the "License"); 00005 * you may not use this file except in compliance with the License. 00006 * You may obtain a copy of the License at 00007 * 00008 * http://www.apache.org/licenses/LICENSE-2.0 00009 * 00010 * Unless required by applicable law or agreed to in writing, software 00011 * distributed under the License is distributed on an "AS IS" BASIS, 00012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00013 * See the License for the specific language governing permissions and 00014 * limitations under the License. 00015 */ 00016 #ifndef MBED_FUNCTIONPOINTER_H 00017 #define MBED_FUNCTIONPOINTER_H 00018 00019 #include <string.h> 00020 00021 namespace mbed { 00022 00023 typedef void (*pvoidf_t)(void); 00024 00025 /** A class for storing and calling a pointer to a static or member void function 00026 */ 00027 class FunctionPointer { 00028 public: 00029 00030 /** Create a FunctionPointer, attaching a static function 00031 * 00032 * @param function The void static function to attach (default is none) 00033 */ 00034 FunctionPointer(void (*function)(void) = 0); 00035 00036 /** Create a FunctionPointer, attaching a member function 00037 * 00038 * @param object The object pointer to invoke the member function on (i.e. the this pointer) 00039 * @param function The address of the void member function to attach 00040 */ 00041 template<typename T> 00042 FunctionPointer(T *object, void (T::*member)(void)) { 00043 attach(object, member); 00044 } 00045 00046 /** Attach a static function 00047 * 00048 * @param function The void static function to attach (default is none) 00049 */ 00050 void attach(void (*function)(void) = 0); 00051 00052 /** Attach a member function 00053 * 00054 * @param object The object pointer to invoke the member function on (i.e. the this pointer) 00055 * @param function The address of the void member function to attach 00056 */ 00057 template<typename T> 00058 void attach(T *object, void (T::*member)(void)) { 00059 _object = static_cast<void*>(object); 00060 memcpy(_member, (char*)&member, sizeof(member)); 00061 _membercaller = &FunctionPointer::membercaller<T>; 00062 _function = 0; 00063 } 00064 00065 /** Call the attached static or member function 00066 */ 00067 void call(); 00068 00069 pvoidf_t get_function() const { 00070 return (pvoidf_t)_function; 00071 } 00072 00073 #ifdef MBED_OPERATORS 00074 void operator ()(void); 00075 #endif 00076 00077 private: 00078 template<typename T> 00079 static void membercaller(void *object, char *member) { 00080 T* o = static_cast<T*>(object); 00081 void (T::*m)(void); 00082 memcpy((char*)&m, member, sizeof(m)); 00083 (o->*m)(); 00084 } 00085 00086 void (*_function)(void); // static function pointer - 0 if none attached 00087 void *_object; // object this pointer - 0 if none attached 00088 char _member[16]; // raw member function pointer storage - converted back by registered _membercaller 00089 void (*_membercaller)(void*, char*); // registered membercaller function to convert back and call _member on _object 00090 }; 00091 00092 } // namespace mbed 00093 00094 #endif 00095
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