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tmk_keyboard/tool/mbed/mbed-sdk/libraries/rpc/rpc.h

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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