Gan likun / mbed-dev11

platform/FunctionPointer.h@0:06036f8bee2d, 2022-10-24 (annotated)

Committer:
ganlikun
Date:
Mon Oct 24 15:19:39 2022 +0000
Revision:
0:06036f8bee2d
11

Who changed what in which revision?

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ganlikun 0:06036f8bee2d 1 /* mbed Microcontroller Library
ganlikun 0:06036f8bee2d 2 * Copyright (c) 2006-2015 ARM Limited
ganlikun 0:06036f8bee2d 3 *
ganlikun 0:06036f8bee2d 4 * Licensed under the Apache License, Version 2.0 (the "License");
ganlikun 0:06036f8bee2d 5 * you may not use this file except in compliance with the License.
ganlikun 0:06036f8bee2d 6 * You may obtain a copy of the License at
ganlikun 0:06036f8bee2d 7 *
ganlikun 0:06036f8bee2d 8 * http://www.apache.org/licenses/LICENSE-2.0
ganlikun 0:06036f8bee2d 9 *
ganlikun 0:06036f8bee2d 10 * Unless required by applicable law or agreed to in writing, software
ganlikun 0:06036f8bee2d 11 * distributed under the License is distributed on an "AS IS" BASIS,
ganlikun 0:06036f8bee2d 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
ganlikun 0:06036f8bee2d 13 * See the License for the specific language governing permissions and
ganlikun 0:06036f8bee2d 14 * limitations under the License.
ganlikun 0:06036f8bee2d 15 */
ganlikun 0:06036f8bee2d 16 #ifndef MBED_FUNCTIONPOINTER_H
ganlikun 0:06036f8bee2d 17 #define MBED_FUNCTIONPOINTER_H
ganlikun 0:06036f8bee2d 18
ganlikun 0:06036f8bee2d 19 #include "platform/Callback.h"
ganlikun 0:06036f8bee2d 20 #include "platform/mbed_toolchain.h"
ganlikun 0:06036f8bee2d 21 #include <string.h>
ganlikun 0:06036f8bee2d 22 #include <stdint.h>
ganlikun 0:06036f8bee2d 23
ganlikun 0:06036f8bee2d 24 namespace mbed {
ganlikun 0:06036f8bee2d 25 /** \addtogroup platform */
ganlikun 0:06036f8bee2d 26
ganlikun 0:06036f8bee2d 27
ganlikun 0:06036f8bee2d 28 // Declarations for backwards compatibility
ganlikun 0:06036f8bee2d 29 // To be foward compatible, code should adopt the Callback class
ganlikun 0:06036f8bee2d 30 /**
ganlikun 0:06036f8bee2d 31 * @ingroup platform
ganlikun 0:06036f8bee2d 32 */
ganlikun 0:06036f8bee2d 33 template <typename R, typename A1>
ganlikun 0:06036f8bee2d 34 class FunctionPointerArg1 : public Callback<R(A1)> {
ganlikun 0:06036f8bee2d 35 public:
ganlikun 0:06036f8bee2d 36 MBED_DEPRECATED_SINCE("mbed-os-5.1",
ganlikun 0:06036f8bee2d 37 "FunctionPointerArg1<R, A> has been replaced by Callback<R(A)>")
ganlikun 0:06036f8bee2d 38 FunctionPointerArg1(R (*function)(A1) = 0)
ganlikun 0:06036f8bee2d 39 : Callback<R(A1)>(function) {}
ganlikun 0:06036f8bee2d 40
ganlikun 0:06036f8bee2d 41 template<typename T>
ganlikun 0:06036f8bee2d 42 MBED_DEPRECATED_SINCE("mbed-os-5.1",
ganlikun 0:06036f8bee2d 43 "FunctionPointerArg1<R, A> has been replaced by Callback<R(A)>")
ganlikun 0:06036f8bee2d 44 FunctionPointerArg1(T *object, R (T::*member)(A1))
ganlikun 0:06036f8bee2d 45 : Callback<R(A1)>(object, member) {}
ganlikun 0:06036f8bee2d 46
ganlikun 0:06036f8bee2d 47 R (*get_function())(A1) {
ganlikun 0:06036f8bee2d 48 return *reinterpret_cast<R (**)(A1)>(this);
ganlikun 0:06036f8bee2d 49 }
ganlikun 0:06036f8bee2d 50
ganlikun 0:06036f8bee2d 51 R call(A1 a1) const {
ganlikun 0:06036f8bee2d 52 if (!Callback<R(A1)>::operator bool()) {
ganlikun 0:06036f8bee2d 53 return (R)0;
ganlikun 0:06036f8bee2d 54 }
ganlikun 0:06036f8bee2d 55
ganlikun 0:06036f8bee2d 56 return Callback<R(A1)>::call(a1);
ganlikun 0:06036f8bee2d 57 }
ganlikun 0:06036f8bee2d 58
ganlikun 0:06036f8bee2d 59 R operator()(A1 a1) const {
ganlikun 0:06036f8bee2d 60 return Callback<R(A1)>::call(a1);
ganlikun 0:06036f8bee2d 61 }
ganlikun 0:06036f8bee2d 62 };
ganlikun 0:06036f8bee2d 63
ganlikun 0:06036f8bee2d 64 /**
ganlikun 0:06036f8bee2d 65 * @ingroup platform
ganlikun 0:06036f8bee2d 66 */
ganlikun 0:06036f8bee2d 67 template <typename R>
ganlikun 0:06036f8bee2d 68 class FunctionPointerArg1<R, void> : public Callback<R()> {
ganlikun 0:06036f8bee2d 69 public:
ganlikun 0:06036f8bee2d 70 MBED_DEPRECATED_SINCE("mbed-os-5.1",
ganlikun 0:06036f8bee2d 71 "FunctionPointer has been replaced by Callback<void()>")
ganlikun 0:06036f8bee2d 72 FunctionPointerArg1(R (*function)() = 0)
ganlikun 0:06036f8bee2d 73 : Callback<R()>(function) {}
ganlikun 0:06036f8bee2d 74
ganlikun 0:06036f8bee2d 75 template<typename T>
ganlikun 0:06036f8bee2d 76 MBED_DEPRECATED_SINCE("mbed-os-5.1",
ganlikun 0:06036f8bee2d 77 "FunctionPointer has been replaced by Callback<void()>")
ganlikun 0:06036f8bee2d 78 FunctionPointerArg1(T *object, R (T::*member)())
ganlikun 0:06036f8bee2d 79 : Callback<R()>(object, member) {}
ganlikun 0:06036f8bee2d 80
ganlikun 0:06036f8bee2d 81 R (*get_function())() {
ganlikun 0:06036f8bee2d 82 return *reinterpret_cast<R (**)()>(this);
ganlikun 0:06036f8bee2d 83 }
ganlikun 0:06036f8bee2d 84
ganlikun 0:06036f8bee2d 85 R call() const {
ganlikun 0:06036f8bee2d 86 if (!Callback<R()>::operator bool()) {
ganlikun 0:06036f8bee2d 87 return (R)0;
ganlikun 0:06036f8bee2d 88 }
ganlikun 0:06036f8bee2d 89
ganlikun 0:06036f8bee2d 90 return Callback<R()>::call();
ganlikun 0:06036f8bee2d 91 }
ganlikun 0:06036f8bee2d 92
ganlikun 0:06036f8bee2d 93 R operator()() const {
ganlikun 0:06036f8bee2d 94 return Callback<R()>::call();
ganlikun 0:06036f8bee2d 95 }
ganlikun 0:06036f8bee2d 96 };
ganlikun 0:06036f8bee2d 97
ganlikun 0:06036f8bee2d 98 typedef FunctionPointerArg1<void, void> FunctionPointer;
ganlikun 0:06036f8bee2d 99
ganlikun 0:06036f8bee2d 100
ganlikun 0:06036f8bee2d 101 } // namespace mbed
ganlikun 0:06036f8bee2d 102
ganlikun 0:06036f8bee2d 103 #endif
ganlikun 0:06036f8bee2d 104