mbed library sources change for ST sensors and ST BLE
Fork of mbed-src by
api/FunctionPointer.h
- Committer:
- emilmont
- Date:
- 2013-06-14
- Revision:
- 10:3bc89ef62ce7
- Parent:
- 9:0ce32e54c9a7
- Child:
- 13:0645d8841f51
File content as of revision 10:3bc89ef62ce7:
/* mbed Microcontroller Library * Copyright (c) 2006-2013 ARM Limited * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #ifndef MBED_FUNCTIONPOINTER_H #define MBED_FUNCTIONPOINTER_H #include <string.h> namespace mbed { /** A class for storing and calling a pointer to a static or member void function */ class FunctionPointer { public: /** Create a FunctionPointer, attaching a static function * * @param function The void static function to attach (default is none) */ FunctionPointer(void (*function)(void) = 0); /** 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> FunctionPointer(T *object, void (T::*member)(void)) { attach(object, member); } /** Attach a static function * * @param function The void static function to attach (default is none) */ void attach(void (*function)(void) = 0); /** 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)(void)) { _object = static_cast<void*>(object); memcpy(_member, (char*)&member, sizeof(member)); _membercaller = &FunctionPointer::membercaller<T>; _function = 0; } /** Call the attached static or member function */ void call(); private: template<typename T> static void membercaller(void *object, char *member) { T* o = static_cast<T*>(object); void (T::*m)(void); memcpy((char*)&m, member, sizeof(m)); (o->*m)(); } void (*_function)(void); // 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*); // registered membercaller function to convert back and call _member on _object }; } // namespace mbed #endif