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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 RPCVARIABLE_H_
#define RPCVARIABLE_H_
#include "rpc.h"
namespace mbed {
/**
*Class to read and set an attached variable using the RPC
*
*/
template<class T>
class RPCVariable: public RPC {
public:
/**
* Constructor
*
*@param ptr Pointer to the variable to make accessible over RPC. Any type of
*variable can be connected
*@param name The name of that this object will be over RPC
*/
template<class A>
RPCVariable(A * ptr, const char * name) : RPC(name) {
_ptr = ptr;
}
/**
*Read the variable over RPC.
*
*@return The value of the variable
*/
T read() {
return (*_ptr);
}
/**
*Write a value to the variable over RPC
*
*@param The value to be written to the attached variable.
*/
void write(T value) {
*_ptr = value;
}
virtual const struct rpc_method *get_rpc_methods();
static struct rpc_class *get_rpc_class();
private:
T * _ptr;
};
template<class T>
const rpc_method *RPCVariable<T>::get_rpc_methods() {
static const rpc_method rpc_methods[] = {
{"read" , rpc_method_caller<T, RPCVariable, &RPCVariable::read> },
{"write", rpc_method_caller<RPCVariable, T, &RPCVariable::write> },
RPC_METHOD_SUPER(RPC)
};
return rpc_methods;
}
template<class T>
rpc_class *RPCVariable<T>::get_rpc_class() {
static const rpc_function funcs[] = {
"new", rpc_function_caller<const char*, T, const char*, &RPC::construct<RPCVariable, T, const char*> > ,
RPC_METHOD_END
};
static rpc_class c = {"RPCVariable", funcs, NULL};
return &c;
}
}
#endif //RPCVARIABLE_H_
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