Ram Gandikota
FRDM K64F Metronome
Diff: mbed-client/test/mbedclient/utest/common/FunctionPointer.h
- Revision:
- 0:dbad57390bd1
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-client/test/mbedclient/utest/common/FunctionPointer.h Sun May 14 18:37:05 2017 +0000
@@ -0,0 +1,604 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2015 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>
+#include <stdint.h>
+#include <stddef.h>
+#include <stdarg.h>
+#include <new>
+#include "FunctionPointerBase.h"
+#include "FunctionPointerBind.h"
+
+namespace mbed {
+/** A class for storing and calling a pointer to a static or member void function without arguments
+ */
+template <typename R>
+class FunctionPointer0 : public FunctionPointerBase<R>{
+public:
+ typedef R(*static_fp)(void);
+ typedef struct arg_struct{
+ } ArgStruct;
+ /** Create a FunctionPointer, attaching a static function
+ *
+ * @param function The void static function to attach (default is none)
+ */
+ FunctionPointer0(static_fp function = 0):
+ FunctionPointerBase<R>()
+ {
+ 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>
+ FunctionPointer0(T *object, R (T::*member)(void)):
+ FunctionPointerBase<R>()
+ {
+ attach(object, member);
+ }
+
+ /** Attach a static function
+ *
+ * @param function The void static function to attach (default is none)
+ */
+ void attach(static_fp function) {
+ FunctionPointerBase<R>::_object = reinterpret_cast<void*>(function);
+ FunctionPointerBase<R>::_membercaller = &FunctionPointer0::staticcaller;
+ }
+
+ /** 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, R (T::*member)(void)) {
+ FunctionPointerBase<R>::_object = static_cast<void*>(object);
+ *reinterpret_cast<R (T::**)(void)>(FunctionPointerBase<R>::_member) = member;
+ FunctionPointerBase<R>::_membercaller = &FunctionPointer0::membercaller<T>;
+ }
+
+ /** Call the attached static or member function
+ */
+ R call(){
+ return FunctionPointerBase<R>::call(NULL);
+ }
+
+ FunctionPointerBind<R> bind() {
+ FunctionPointerBind<R> fp;
+ fp.bind(&FunctionPointerBase<R>::_nullops, (ArgStruct *) NULL, this);
+ return fp;
+ }
+
+ static_fp get_function()const {
+ return reinterpret_cast<static_fp>(FunctionPointerBase<R>::_object);
+ }
+
+ R operator ()(void) {
+ return call();
+ }
+
+private:
+ template<typename T>
+ static R membercaller(void *object, uintptr_t *member, void *arg) {
+ (void) arg;
+ T* o = static_cast<T*>(object);
+ R (T::**m)(void) = reinterpret_cast<R (T::**)(void)>(member);
+ return (o->**m)();
+ }
+ static R staticcaller(void *object, uintptr_t *member, void *arg) {
+ (void) arg;
+ (void) member;
+ static_fp f = reinterpret_cast<static_fp>(object);
+ return f();
+ }
+};
+
+/* If we had variaditic templates, this wouldn't be a problem, but until C++11 is enabled, we are stuck with multiple classes... */
+
+/** A class for storing and calling a pointer to a static or member void function with one argument
+ */
+template <typename R, typename A1>
+class FunctionPointer1 : public FunctionPointerBase<R> {
+protected:
+ typedef struct arg_struct{
+ A1 a1;
+ arg_struct(const A1 *b1) {
+ a1 = *b1;
+ }
+ } ArgStruct;
+
+public:
+ typedef R(*static_fp)(A1);
+ /** Create a FunctionPointer, attaching a static function
+ *
+ * @param function The void static function to attach (default is none)
+ */
+ FunctionPointer1(static_fp function = 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>
+ FunctionPointer1(T *object, R (T::*member)(A1)) {
+ attach(object, member);
+ }
+
+ /** Attach a static function
+ *
+ * @param function The void static function to attach (default is none)
+ */
+ void attach(static_fp function) {
+ FunctionPointerBase<R>::_object = reinterpret_cast<void*>(function);
+ FunctionPointerBase<R>::_membercaller = &FunctionPointer1::staticcaller;
+ }
+
+ /** 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, R (T::*member)(A1))
+ {
+ FunctionPointerBase<R>::_object = static_cast<void*>(object);
+ *reinterpret_cast<R (T::**)(A1)>(FunctionPointerBase<R>::_member) = member;
+ FunctionPointerBase<R>::_membercaller = &FunctionPointer1::membercaller<T>;
+ }
+
+ FunctionPointerBind<R> bind(const A1 &a1) {
+ FunctionPointerBind<R> fp;
+ fp.bind(&_fp1_ops, (ArgStruct *) NULL, this, &a1);
+ return fp;
+ }
+
+
+ /** Call the attached static or member function
+ */
+ R call(A1 a1)
+ {
+ ArgStruct Args(&a1);
+ return FunctionPointerBase<R>::call(&Args);
+ }
+
+ static_fp get_function()const
+ {
+ return reinterpret_cast<static_fp>(FunctionPointerBase<R>::_object);
+ }
+
+ R operator ()(A1 a) {
+ return call(a);
+ }
+
+private:
+ template<typename T>
+ static R membercaller(void *object, uintptr_t *member, void *arg) {
+ ArgStruct *Args = static_cast<ArgStruct *>(arg);
+ T* o = static_cast<T*>(object);
+ R (T::**m)(A1) = reinterpret_cast<R (T::**)(A1)>(member);
+ return (o->**m)(Args->a1);
+ }
+ static R staticcaller(void *object, uintptr_t *member, void *arg) {
+ ArgStruct *Args = static_cast<ArgStruct *>(arg);
+ (void) member;
+ static_fp f = reinterpret_cast<static_fp>(object);
+ return f(Args->a1);
+ }
+/* static void constructor(void * dest, va_list args) {
+ new(dest) ArgStruct(va_arg(args,A1*));
+ }
+ static void copy_constructor(void *dest , void* src) {
+ ArgStruct *src_args = static_cast<ArgStruct *>(src);
+ new(dest) ArgStruct(&(src_args->a1));
+ }
+ static void destructor(void *args) {
+ ArgStruct *argstruct = static_cast<ArgStruct *>(args);
+ argstruct->~arg_struct();
+ }
+*/
+protected:
+ static const struct FunctionPointerBase<R>::ArgOps _fp1_ops;
+};
+
+template <typename R, typename A1>
+const struct FunctionPointerBase<R>::ArgOps FunctionPointer1<R,A1>::_fp1_ops = {
+ FunctionPointer1<R,A1>::constructor,
+ FunctionPointer1<R,A1>::copy_constructor,
+ FunctionPointer1<R,A1>::destructor
+};
+
+
+/** A class for storing and calling a pointer to a static or member void function with two arguments
+ */
+template <typename R, typename A1, typename A2>
+class FunctionPointer2 : public FunctionPointerBase<R> {
+protected:
+ typedef struct arg_struct{
+ A1 a1;
+ A2 a2;
+ arg_struct(const A1 *b1, const A2 *b2) {
+ a1 = *b1;
+ a2 = *b2;
+ }
+ } ArgStruct;
+
+public:
+ typedef R(*static_fp)(A1, A2);
+ /** Create a FunctionPointer, attaching a static function
+ *
+ * @param function The void static function to attach (default is none)
+ */
+ FunctionPointer2(static_fp function = 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>
+ FunctionPointer2(T *object, R (T::*member)(A1, A2)) {
+ attach(object, member);
+ }
+
+ /** Attach a static function
+ *
+ * @param function The void static function to attach (default is none)
+ */
+ void attach(static_fp function) {
+ FunctionPointerBase<R>::_object = reinterpret_cast<void*>(function);
+ FunctionPointerBase<R>::_membercaller = &FunctionPointer2::staticcaller;
+ }
+
+ /** 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, R (T::*member)(A1, A2))
+ {
+ FunctionPointerBase<R>::_object = static_cast<void*>(object);
+ *reinterpret_cast<R (T::**)(A1, A2)>(FunctionPointerBase<R>::_member) = member;
+ FunctionPointerBase<R>::_membercaller = &FunctionPointer2::membercaller<T>;
+ }
+
+ FunctionPointerBind<R> bind(const A1 &a1, const A2 &a2) {
+ FunctionPointerBind<R> fp;
+ fp.bind(&_fp2_ops, (ArgStruct *) NULL, this, &a1, &a2);
+ return fp;
+ }
+
+
+ /** Call the attached static or member function
+ */
+ R call(A1 a1, A2 a2)
+ {
+ ArgStruct Args(&a1, &a2);
+ return FunctionPointerBase<R>::call(&Args);
+ }
+
+ static_fp get_function()const
+ {
+ return reinterpret_cast<static_fp>(FunctionPointerBase<R>::_object);
+ }
+
+ R operator ()(A1 a1, A2 a2) {
+ return call(a1, a2);
+ }
+
+private:
+ template<typename T>
+ static R membercaller(void *object, uintptr_t *member, void *arg) {
+ ArgStruct *Args = static_cast<ArgStruct *>(arg);
+ T* o = static_cast<T*>(object);
+ R (T::**m)(A1, A2) = reinterpret_cast<R (T::**)(A1, A2)>(member);
+ return (o->**m)(Args->a1, Args->a2);
+ }
+ static R staticcaller(void *object, uintptr_t *member, void *arg) {
+ ArgStruct *Args = static_cast<ArgStruct *>(arg);
+ (void) member;
+ static_fp f = reinterpret_cast<static_fp>(object);
+ return f(Args->a1, Args->a2);
+ }
+/* static void constructor(void * dest, va_list args) {
+ A1 *a1 = va_arg(args, A1*);
+ A2 *a2 = va_arg(args, A2*);
+ new(dest) ArgStruct(a1, a2);
+ }
+ static void copy_constructor(void *dest , void* src) {
+ ArgStruct *src_args = static_cast<ArgStruct *>(src);
+ new(dest) ArgStruct(&(src_args->a1), &(src_args->a2));
+ }
+ static void destructor(void *args) {
+ ArgStruct *argstruct = static_cast<ArgStruct *>(args);
+ argstruct->~arg_struct();
+ }
+*/
+protected:
+ static const struct FunctionPointerBase<R>::ArgOps _fp2_ops;
+};
+
+template <typename R, typename A1, typename A2>
+const struct FunctionPointerBase<R>::ArgOps FunctionPointer2<R,A1,A2>::_fp2_ops = {
+ FunctionPointer2<R,A1,A2>::constructor,
+ FunctionPointer2<R,A1,A2>::copy_constructor,
+ FunctionPointer2<R,A1,A2>::destructor
+};
+
+/** A class for storing and calling a pointer to a static or member void function with three arguments
+ */
+template <typename R, typename A1, typename A2, typename A3>
+class FunctionPointer3 : public FunctionPointerBase<R> {
+protected:
+ typedef struct arg_struct{
+ A1 a1;
+ A2 a2;
+ A3 a3;
+ arg_struct(const A1 *b1, const A2 *b2, const A3* b3) {
+ a1 = *b1;
+ a2 = *b2;
+ a3 = *b3;
+ }
+ } ArgStruct;
+
+public:
+ typedef R(*static_fp)(A1, A2, A3);
+ /** Create a FunctionPointer, attaching a static function
+ *
+ * @param function The void static function to attach (default is none)
+ */
+ FunctionPointer3(static_fp function = 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>
+ FunctionPointer3(T *object, R (T::*member)(A1, A2, A3)) {
+ attach(object, member);
+ }
+
+ /** Attach a static function
+ *
+ * @param function The void static function to attach (default is none)
+ */
+ void attach(static_fp function) {
+ FunctionPointerBase<R>::_object = reinterpret_cast<void*>(function);
+ FunctionPointerBase<R>::_membercaller = &FunctionPointer3::staticcaller;
+ }
+
+ /** 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, R (T::*member)(A1, A2, A3))
+ {
+ FunctionPointerBase<R>::_object = static_cast<void*>(object);
+ *reinterpret_cast<R (T::**)(A1, A2, A3)>(FunctionPointerBase<R>::_member) = member;
+ FunctionPointerBase<R>::_membercaller = &FunctionPointer3::membercaller<T>;
+ }
+
+ FunctionPointerBind<R> bind(const A1 &a1, const A2 &a2, const A3 &a3) {
+ FunctionPointerBind<R> fp;
+ fp.bind(&_fp3_ops, (ArgStruct *) NULL, this, &a1, &a2, &a3);
+ return fp;
+ }
+
+
+ /** Call the attached static or member function
+ */
+ R call(A1 a1, A2 a2, A3 a3)
+ {
+ ArgStruct Args(&a1, &a2, &a3);
+ return FunctionPointerBase<R>::call(&Args);
+ }
+
+ static_fp get_function()const
+ {
+ return reinterpret_cast<static_fp>(FunctionPointerBase<R>::_object);
+ }
+
+ R operator ()(A1 a1, A2 a2, A3 a3) {
+ return call(a1, a2, a3);
+ }
+
+private:
+ template<typename T>
+ static R membercaller(void *object, uintptr_t *member, void *arg) {
+ ArgStruct *Args = static_cast<ArgStruct *>(arg);
+ T* o = static_cast<T*>(object);
+ R (T::**m)(A1, A2, A3) = reinterpret_cast<R (T::**)(A1, A2, A3)>(member);
+ return (o->**m)(Args->a1, Args->a2, Args->a3);
+ }
+ static R staticcaller(void *object, uintptr_t *member, void *arg) {
+ ArgStruct *Args = static_cast<ArgStruct *>(arg);
+ (void) member;
+ static_fp f = reinterpret_cast<static_fp>(object);
+ return f(Args->a1, Args->a2, Args->a3);
+ }
+/* static void constructor(void * dest, va_list args) {
+ A1 *a1 = va_arg(args, A1*);
+ A2 *a2 = va_arg(args, A2*);
+ A3 *a3 = va_arg(args, A3*);
+ new(dest) ArgStruct(a1, a2, a3);
+ }
+ static void copy_constructor(void *dest , void* src) {
+ ArgStruct *src_args = static_cast<ArgStruct *>(src);
+ new(dest) ArgStruct(&(src_args->a1), &(src_args->a2), &(src_args->a3));
+ }
+ static void destructor(void *args) {
+ ArgStruct *argstruct = static_cast<ArgStruct *>(args);
+ argstruct->~arg_struct();
+ }
+*/
+protected:
+ static const struct FunctionPointerBase<R>::ArgOps _fp3_ops;
+};
+
+template <typename R, typename A1, typename A2, typename A3>
+const struct FunctionPointerBase<R>::ArgOps FunctionPointer3<R,A1,A2,A3>::_fp3_ops = {
+ FunctionPointer3<R,A1,A2,A3>::constructor,
+ FunctionPointer3<R,A1,A2,A3>::copy_constructor,
+ FunctionPointer3<R,A1,A2,A3>::destructor
+};
+
+/** A class for storing and calling a pointer to a static or member void function with four arguments
+ */
+template <typename R, typename A1, typename A2, typename A3, typename A4>
+class FunctionPointer4 : public FunctionPointerBase<R> {
+protected:
+ typedef struct arg_struct{
+ A1 a1;
+ A2 a2;
+ A3 a3;
+ A4 a4;
+ arg_struct(const A1 *b1, const A2 *b2, const A3* b3, const A4* b4) {
+ a1 = *b1;
+ a2 = *b2;
+ a3 = *b3;
+ a4 = *b4;
+ }
+ } ArgStruct;
+
+public:
+ typedef R(*static_fp)(A1, A2, A3, A4);
+ /** Create a FunctionPointer, attaching a static function
+ *
+ * @param function The void static function to attach (default is none)
+ */
+ FunctionPointer4(static_fp function = 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>
+ FunctionPointer4(T *object, R (T::*member)(A1, A2, A3, A4)) {
+ attach(object, member);
+ }
+
+ /** Attach a static function
+ *
+ * @param function The void static function to attach (default is none)
+ */
+ void attach(static_fp function) {
+ FunctionPointerBase<R>::_object = reinterpret_cast<void*>(function);
+ FunctionPointerBase<R>::_membercaller = &FunctionPointer4::staticcaller;
+ }
+
+ /** 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, R (T::*member)(A1, A2, A3, A4))
+ {
+ FunctionPointerBase<R>::_object = static_cast<void*>(object);
+ *reinterpret_cast<R (T::**)(A1, A2, A3, A4)>(FunctionPointerBase<R>::_member) = member;
+ FunctionPointerBase<R>::_membercaller = &FunctionPointer4::membercaller<T>;
+ }
+
+ FunctionPointerBind<R> bind(const A1 &a1, const A2 &a2, const A3 &a3, const A4 &a4) {
+ FunctionPointerBind<R> fp;
+ fp.bind(&_fp4_ops, (ArgStruct *) NULL, this, &a1, &a2, &a3, &a4);
+ return fp;
+ }
+
+
+ /** Call the attached static or member function
+ */
+ R call(A1 a1, A2 a2, A3 a3, A4 a4)
+ {
+ ArgStruct Args(&a1, &a2, &a3, &a4);
+ return FunctionPointerBase<R>::call(&Args);
+ }
+
+ static_fp get_function()const
+ {
+ return reinterpret_cast<static_fp>(FunctionPointerBase<R>::_object);
+ }
+
+ R operator ()(A1 a1, A2 a2, A3 a3, A4 a4) {
+ return call(a1, a2, a3, a4);
+ }
+
+private:
+ template<typename T>
+ static R membercaller(void *object, uintptr_t *member, void *arg) {
+ ArgStruct *Args = static_cast<ArgStruct *>(arg);
+ T* o = static_cast<T*>(object);
+ R (T::**m)(A1, A2, A3, A4) = reinterpret_cast<R (T::**)(A1, A2, A3, A4)>(member);
+ return (o->**m)(Args->a1, Args->a2, Args->a3, Args->a4);
+ }
+ static R staticcaller(void *object, uintptr_t *member, void *arg) {
+ ArgStruct *Args = static_cast<ArgStruct *>(arg);
+ (void) member;
+ static_fp f = reinterpret_cast<static_fp>(object);
+ return f(Args->a1, Args->a2, Args->a3, Args->a4);
+ }
+/* static void constructor(void * dest, va_list args) {
+ A1 *a1 = va_arg(args, A1*);
+ A2 *a2 = va_arg(args, A2*);
+ A3 *a3 = va_arg(args, A3*);
+ A4 *a4 = va_arg(args, A4*);
+ new(dest) ArgStruct(a1, a2, a3, a4);
+ }
+ static void copy_constructor(void *dest , void* src) {
+ ArgStruct *src_args = static_cast<ArgStruct *>(src);
+ new(dest) ArgStruct(&(src_args->a1), &(src_args->a2), &(src_args->a3), &(src_args->a4));
+ }
+ static void destructor(void *args) {
+ ArgStruct *argstruct = static_cast<ArgStruct *>(args);
+ argstruct->~arg_struct();
+ }
+*/
+protected:
+ static const struct FunctionPointerBase<R>::ArgOps _fp4_ops;
+};
+
+template <typename R, typename A1, typename A2, typename A3, typename A4>
+const struct FunctionPointerBase<R>::ArgOps FunctionPointer4<R,A1,A2,A3,A4>::_fp4_ops = {
+ FunctionPointer4<R,A1,A2,A3,A4>::constructor,
+ FunctionPointer4<R,A1,A2,A3,A4>::copy_constructor,
+ FunctionPointer4<R,A1,A2,A3,A4>::destructor
+};
+
+typedef FunctionPointer0<void> FunctionPointer;
+//typedef FunctionPointer1<void, int> event_callback_t;
+
+} // namespace mbed
+
+#endif