Junichi Katsu / Mbed 2 deprecated BLE_MPU6050_test6_challenge_sb

テスト用です。

Dependencies:   mbed

BLE_API/public/FunctionPointerWithContext.h@0:8468a4403fea, 2016-10-11 (annotated)

Committer:
jksoft
Date:
Tue Oct 11 11:09:42 2016 +0000
Revision:
0:8468a4403fea
SB??ver;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jksoft 0:8468a4403fea 1 /* mbed Microcontroller Library
jksoft 0:8468a4403fea 2 * Copyright (c) 2006-2013 ARM Limited
jksoft 0:8468a4403fea 3 *
jksoft 0:8468a4403fea 4 * Licensed under the Apache License, Version 2.0 (the "License");
jksoft 0:8468a4403fea 5 * you may not use this file except in compliance with the License.
jksoft 0:8468a4403fea 6 * You may obtain a copy of the License at
jksoft 0:8468a4403fea 7 *
jksoft 0:8468a4403fea 8 * http://www.apache.org/licenses/LICENSE-2.0
jksoft 0:8468a4403fea 9 *
jksoft 0:8468a4403fea 10 * Unless required by applicable law or agreed to in writing, software
jksoft 0:8468a4403fea 11 * distributed under the License is distributed on an "AS IS" BASIS,
jksoft 0:8468a4403fea 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
jksoft 0:8468a4403fea 13 * See the License for the specific language governing permissions and
jksoft 0:8468a4403fea 14 * limitations under the License.
jksoft 0:8468a4403fea 15 */
jksoft 0:8468a4403fea 16
jksoft 0:8468a4403fea 17 #ifndef MBED_FUNCTIONPOINTER_WITH_CONTEXT_H
jksoft 0:8468a4403fea 18 #define MBED_FUNCTIONPOINTER_WITH_CONTEXT_H
jksoft 0:8468a4403fea 19
jksoft 0:8468a4403fea 20 #include <string.h>
jksoft 0:8468a4403fea 21
jksoft 0:8468a4403fea 22
jksoft 0:8468a4403fea 23 /** A class for storing and calling a pointer to a static or member void function
jksoft 0:8468a4403fea 24 * which takes a context.
jksoft 0:8468a4403fea 25 */
jksoft 0:8468a4403fea 26 template <typename ContextType>
jksoft 0:8468a4403fea 27 class FunctionPointerWithContext {
jksoft 0:8468a4403fea 28 public:
jksoft 0:8468a4403fea 29 typedef FunctionPointerWithContext<ContextType> *pFunctionPointerWithContext_t;
jksoft 0:8468a4403fea 30 typedef void (*pvoidfcontext_t)(ContextType context);
jksoft 0:8468a4403fea 31
jksoft 0:8468a4403fea 32 /** Create a FunctionPointerWithContext, attaching a static function
jksoft 0:8468a4403fea 33 *
jksoft 0:8468a4403fea 34 * @param function The void static function to attach (default is none)
jksoft 0:8468a4403fea 35 */
jksoft 0:8468a4403fea 36 FunctionPointerWithContext(void (*function)(ContextType context) = NULL) :
jksoft 0:8468a4403fea 37 _function(NULL), _object(NULL), _member(), _membercaller(NULL), _next(NULL) {
jksoft 0:8468a4403fea 38 attach(function);
jksoft 0:8468a4403fea 39 }
jksoft 0:8468a4403fea 40
jksoft 0:8468a4403fea 41 /** Create a FunctionPointerWithContext, attaching a member function
jksoft 0:8468a4403fea 42 *
jksoft 0:8468a4403fea 43 * @param object The object pointer to invoke the member function on (i.e. the this pointer)
jksoft 0:8468a4403fea 44 * @param function The address of the void member function to attach
jksoft 0:8468a4403fea 45 */
jksoft 0:8468a4403fea 46 template<typename T>
jksoft 0:8468a4403fea 47 FunctionPointerWithContext(T *object, void (T::*member)(ContextType context)) :
jksoft 0:8468a4403fea 48 _function(NULL), _object(NULL), _member(), _membercaller(NULL), _next(NULL) {
jksoft 0:8468a4403fea 49 attach(object, member);
jksoft 0:8468a4403fea 50 }
jksoft 0:8468a4403fea 51
jksoft 0:8468a4403fea 52 /** Attach a static function
jksoft 0:8468a4403fea 53 *
jksoft 0:8468a4403fea 54 * @param function The void static function to attach (default is none)
jksoft 0:8468a4403fea 55 */
jksoft 0:8468a4403fea 56 void attach(void (*function)(ContextType context) = NULL) {
jksoft 0:8468a4403fea 57 _function = function;
jksoft 0:8468a4403fea 58 }
jksoft 0:8468a4403fea 59
jksoft 0:8468a4403fea 60 /** Attach a member function
jksoft 0:8468a4403fea 61 *
jksoft 0:8468a4403fea 62 * @param object The object pointer to invoke the member function on (i.e. the this pointer)
jksoft 0:8468a4403fea 63 * @param function The address of the void member function to attach
jksoft 0:8468a4403fea 64 */
jksoft 0:8468a4403fea 65 template<typename T>
jksoft 0:8468a4403fea 66 void attach(T *object, void (T::*member)(ContextType context)) {
jksoft 0:8468a4403fea 67 _object = static_cast<void *>(object);
jksoft 0:8468a4403fea 68 memcpy(_member, (char *)&member, sizeof(member));
jksoft 0:8468a4403fea 69 _membercaller = &FunctionPointerWithContext::membercaller<T>;
jksoft 0:8468a4403fea 70 }
jksoft 0:8468a4403fea 71
jksoft 0:8468a4403fea 72 /** Call the attached static or member function; and if there are chained
jksoft 0:8468a4403fea 73 * FunctionPointers their callbacks are invoked as well.
jksoft 0:8468a4403fea 74 * @Note: all chained callbacks stack up; so hopefully there won't be too
jksoft 0:8468a4403fea 75 * many FunctionPointers in a chain. */
jksoft 0:8468a4403fea 76 void call(ContextType context) {
jksoft 0:8468a4403fea 77 if (_function) {
jksoft 0:8468a4403fea 78 _function(context);
jksoft 0:8468a4403fea 79 } else if (_object && _membercaller) {
jksoft 0:8468a4403fea 80 _membercaller(_object, _member, context);
jksoft 0:8468a4403fea 81 }
jksoft 0:8468a4403fea 82
jksoft 0:8468a4403fea 83 /* Propagate the call to next in the chain. */
jksoft 0:8468a4403fea 84 if (_next) {
jksoft 0:8468a4403fea 85 _next->call(context);
jksoft 0:8468a4403fea 86 }
jksoft 0:8468a4403fea 87 }
jksoft 0:8468a4403fea 88
jksoft 0:8468a4403fea 89 /**
jksoft 0:8468a4403fea 90 * Setup an external FunctionPointer as a next in the chain of related
jksoft 0:8468a4403fea 91 * callbacks. Invoking call() on the head FunctionPointer will invoke all
jksoft 0:8468a4403fea 92 * chained callbacks.
jksoft 0:8468a4403fea 93 *
jksoft 0:8468a4403fea 94 * Refer to 'CallChain' as an alternative.
jksoft 0:8468a4403fea 95 */
jksoft 0:8468a4403fea 96 void chainAsNext(pFunctionPointerWithContext_t next) {
jksoft 0:8468a4403fea 97 _next = next;
jksoft 0:8468a4403fea 98 }
jksoft 0:8468a4403fea 99
jksoft 0:8468a4403fea 100 pFunctionPointerWithContext_t getNext(void) const {
jksoft 0:8468a4403fea 101 return _next;
jksoft 0:8468a4403fea 102 }
jksoft 0:8468a4403fea 103
jksoft 0:8468a4403fea 104 pvoidfcontext_t get_function() const {
jksoft 0:8468a4403fea 105 return (pvoidfcontext_t)_function;
jksoft 0:8468a4403fea 106 }
jksoft 0:8468a4403fea 107
jksoft 0:8468a4403fea 108 private:
jksoft 0:8468a4403fea 109 template<typename T>
jksoft 0:8468a4403fea 110 static void membercaller(void *object, char *member, ContextType context) {
jksoft 0:8468a4403fea 111 T *o = static_cast<T *>(object);
jksoft 0:8468a4403fea 112 void (T::*m)(ContextType);
jksoft 0:8468a4403fea 113 memcpy((char *)&m, member, sizeof(m));
jksoft 0:8468a4403fea 114 (o->*m)(context);
jksoft 0:8468a4403fea 115 }
jksoft 0:8468a4403fea 116
jksoft 0:8468a4403fea 117 void (*_function)(ContextType context); /**< static function pointer - NULL if none attached */
jksoft 0:8468a4403fea 118 void *_object; /**< object this pointer - NULL if none attached */
jksoft 0:8468a4403fea 119 char _member[16]; /**< raw member function pointer storage - converted back by
jksoft 0:8468a4403fea 120 * registered _membercaller */
jksoft 0:8468a4403fea 121 void (*_membercaller)(void *, char *, ContextType); /**< registered membercaller function to convert back and call
jksoft 0:8468a4403fea 122 * _member on _object passing the context. */
jksoft 0:8468a4403fea 123 pFunctionPointerWithContext_t _next; /**< Optional link to make a chain out of functionPointers; this
jksoft 0:8468a4403fea 124 * allows chaining function pointers without requiring
jksoft 0:8468a4403fea 125 * external memory to manage the chain. Also refer to
jksoft 0:8468a4403fea 126 * 'CallChain' as an alternative. */
jksoft 0:8468a4403fea 127 };
jksoft 0:8468a4403fea 128
jksoft 0:8468a4403fea 129 #endif // ifndef MBED_FUNCTIONPOINTER_WITH_CONTEXT_H