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- /* 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 RPC_H
- #define RPC_H
-
- #include "mbed.h"
- #include "Arguments.h"
-
- namespace mbed {
-
- #define RPC_MAX_STRING 128
-
- struct rpc_function {
- const char *name;
- void (*function_caller)(Arguments*, Reply*);
- };
-
- struct rpc_class {
- const char *name;
- const rpc_function *static_functions;
- struct rpc_class *next;
- };
-
- /* Class RPC
- * The RPC class for most things
- */
- class RPC {
-
- public:
-
- RPC(const char *name = NULL);
-
- virtual ~RPC();
-
- /* Function get_rpc_methods
- * Returns a pointer to an array describing the rpc methods
- * supported by this object, terminated by either
- * RPC_METHOD_END or RPC_METHOD_SUPER(Superclass).
- *
- * Example
- * > class Example : public RPC {
- * > int foo(int a, int b) { return a + b; }
- * > virtual const struct rpc_method *get_rpc_methods() {
- * > static const rpc_method rpc_methods[] = {
- * > { "foo", generic_caller<int, Example, int, int, &Example::foo> },
- * > RPC_METHOD_SUPER(RPC)
- * > };
- * > return rpc_methods;
- * > }
- * > };
- */
- virtual const struct rpc_method *get_rpc_methods();
-
- static bool call(const char *buf, char *result);
-
- /* Function lookup
- * Lookup and return the object that has the given name.
- *
- * Variables
- * name - the name to lookup.
- */
- static RPC *lookup(const char *name);
-
- protected:
- static RPC *_head;
- RPC *_next;
- char *_name;
- bool _from_construct;
-
- private:
- static rpc_class *_classes;
-
- static const rpc_function _RPC_funcs[];
- static rpc_class _RPC_class;
-
- void delete_self();
- static void list_objs(Arguments *args, Reply *result);
- static void clear(Arguments *args, Reply *result);
-
- public:
- /* Function add_rpc_class
- * Add the class to the list of classes which can have static
- * methods called via rpc (the static methods which can be called
- * are defined by that class' get_rpc_class() static method).
- */
- template<class C>
- static void add_rpc_class() {
- rpc_class *c = C::get_rpc_class();
- c->next = _classes;
- _classes = c;
- }
-
- template<class C>
- static const char *construct() {
- RPC *p = new C();
- p->_from_construct = true;
- return p->_name;
- }
-
- template<class C, typename A1>
- static const char *construct(A1 arg1) {
- RPC *p = new C(arg1);
- p->_from_construct = true;
- return p->_name;
- }
-
- template<class C, typename A1, typename A2>
- static const char *construct(A1 arg1, A2 arg2) {
- RPC *p = new C(arg1, arg2);
- p->_from_construct = true;
- return p->_name;
- }
-
- template<class C, typename A1, typename A2, typename A3>
- static const char *construct(A1 arg1, A2 arg2, A3 arg3) {
- RPC *p = new C(arg1, arg2, arg3);
- p->_from_construct = true;
- return p->_name;
- }
-
- template<class C, typename A1, typename A2, typename A3, typename A4>
- static const char *construct(A1 arg1, A2 arg2, A3 arg3, A4 arg4) {
- RPC *p = new C(arg1, arg2, arg3, arg4);
- p->_from_construct = true;
- return p->_name;
- }
- };
-
- /* Macro MBED_OBJECT_NAME_MAX
- * The maximum size of object name (including terminating null byte)
- * that will be recognised when using fopen to open a FileLike
- * object, or when using the rpc function.
- */
- #define MBED_OBJECT_NAME_MAX 32
-
- /* Macro MBED_METHOD_NAME_MAX
- * The maximum size of rpc method name (including terminating null
- * byte) that will be recognised by the rpc function (in rpc.h).
- */
- #define MBED_METHOD_NAME_MAX 32
-
- /* Function rpc_method_caller
- */
- template<class T, void(T::*member)(const char *, char *)>
- void rpc_method_caller(RPC *this_ptr, Arguments *arguments, Reply *result) {
- (static_cast<T*>(this_ptr)->*member)(arguments, result);
- }
-
- /* Function rpc_method_caller
- */
- template<class T, void(T::*member)()>
- void rpc_method_caller(RPC *this_ptr, Arguments *arguments, Reply *result) {
- (static_cast<T*>(this_ptr)->*member)();
- }
-
- /* Function rpc_method_caller
- */
- template<class T, typename A1, void(T::*member)(A1)>
- void rpc_method_caller(RPC *this_ptr, Arguments *arguments, Reply *result) {
- A1 arg1 = arguments->getArg<A1>();
-
- (static_cast<T*>(this_ptr)->*member)(arg1);
- }
-
- /* Function rpc_method_caller
- */
- template<class T, typename A1, typename A2, void(T::*member)(A1, A2)>
- void rpc_method_caller(RPC *this_ptr, Arguments *arguments, Reply *result) {
- A1 arg1 = arguments->getArg<A1>();
- A2 arg2 = arguments->getArg<A2>();
-
- (static_cast<T*>(this_ptr)->*member)(arg1, arg2);
- }
-
- /* Function rpc_method_caller
- */
- template<class T, typename A1, typename A2, typename A3, void(T::*member)(A1, A2, A3)>
- void rpc_method_caller(RPC *this_ptr, Arguments *arguments, Reply *result) {
- A1 arg1 = arguments->getArg<A1>();
- A2 arg2 = arguments->getArg<A2>();
- A3 arg3 = arguments->getArg<A3>();
-
- (static_cast<T*>(this_ptr)->*member)(arg1, arg2, arg3);
- }
-
- /* Function rpc_method_caller
- */
- template<typename R, class T, R(T::*member)()>
- void rpc_method_caller(RPC *this_ptr, Arguments *arguments, Reply *result) {
- R res = (static_cast<T*>(this_ptr)->*member)();
- result->putData<R>(res);
- }
-
- /* Function rpc_method_caller
- */
- template<typename R, class T, typename A1, R(T::*member)(A1)>
- void rpc_method_caller(RPC *this_ptr, Arguments *arguments, Reply *result) {
- A1 arg1 = arguments->getArg<A1>();
-
- R res = (static_cast<T*>(this_ptr)->*member)(arg1);
- result->putData<R>(res);
- }
-
- /* Function rpc_method_caller
- */
- template<typename R, class T, typename A1, typename A2, R(T::*member)(A1, A2)>
- void rpc_method_caller(RPC *this_ptr, Arguments *arguments, Reply *result) {
- A1 arg1 = arguments->getArg<A1>();
- A2 arg2 = arguments->getArg<A2>();
-
- R res = (static_cast<T*>(this_ptr)->*member)(arg1, arg2);
- result->putData<R>(res);
- }
-
- /* Function rpc_method_caller
- */
- template<typename R, class T, typename A1, typename A2, typename A3, R(T::*member)(A1, A2, A3)>
- void rpc_method_caller(RPC *this_ptr, Arguments *arguments, Reply *result) {
- A1 arg1 = arguments->getArg<A1>();
- A2 arg2 = arguments->getArg<A2>();
- A3 arg3 = arguments->getArg<A3>();
-
- R res = (static_cast<T*>(this_ptr)->*member)(arg1, arg2, arg3);
- result->putData<R>(res);
- }
-
- /* Function rpc_function caller
- */
- template<typename R, R(*func)()>
- void rpc_function_caller(Arguments *arguments, Reply *result) {
- R res = (*func)();
- result->putData<R>(res);
- }
-
- /* Function rpc_function caller
- */
- template<typename R, typename A1, R(*func)(A1)>
- void rpc_function_caller(Arguments *arguments, Reply *result) {
- A1 arg1 = arguments->getArg<A1>();
- R res = (*func)(arg1);
- result->putData<R>(res);
- }
-
- /* Function rpc_function caller
- */
- template<typename R, typename A1, typename A2, R(*func)(A1, A2)>
- void rpc_function_caller(Arguments *arguments, Reply *result) {
- A1 arg1 = arguments->getArg<A1>();
- A2 arg2 = arguments->getArg<A2>();
-
- R res = (*func)(arg1, arg2);
- result->putData<R>(res);
- }
-
- /* Function rpc_function caller
- */
- template<typename R, typename A1, typename A2, typename A3, R(*func)(A1, A2, A3)>
- void rpc_function_caller(Arguments *arguments, Reply *result) {
- A1 arg1 = arguments->getArg<A1>();
- A2 arg2 = arguments->getArg<A2>();
- A3 arg3 = arguments->getArg<A3>();
-
- R res = (*func)(arg1, arg2, arg3);
- result->putData<R>(res);
- }
-
- /* Function rpc_function caller
- */
- template<typename R, typename A1, typename A2, typename A3, typename A4, R(*func)(A1, A2, A3, A4)>
- void rpc_function_caller(Arguments *arguments, Reply *result) {
- A1 arg1 = arguments->getArg<A1>();
- A2 arg2 = arguments->getArg<A2>();
- A3 arg3 = arguments->getArg<A3>();
- A4 arg4 = arguments->getArg<A4>();
-
- R res = (*func)(arg1, arg2, arg3, arg4);
- result->putData<R>(res);
- }
-
- struct rpc_method {
- const char *name;
- typedef void (*method_caller_t)(RPC*, Arguments*, Reply*);
- typedef const struct rpc_method *(*super_t)(RPC*);
- union {
- method_caller_t method_caller;
- super_t super;
- };
- };
-
- template<class C>
- const struct rpc_method *rpc_super(RPC *this_ptr) {
- return static_cast<C*>(this_ptr)->C::get_rpc_methods();
- }
-
- #define RPC_METHOD_END { NULL, NULL }
- #define RPC_METHOD_SUPER(C) { NULL, (rpc_method::method_caller_t)rpc_super<C> }
-
- } // namespace mbed
-
- #endif
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