smd.iotkit2.ch / Mbed 2 deprecated RPCHTTPServerSimple

Einfaches mbed RPC Beispiel

Dependencies:   EthernetInterface HttpServer mbed-rtos mbed

Fork of RPCHTTPServerSimple by th.iotkit2.ch

Remote Procedure Call (RPC - „Aufruf einer fernen Prozedur“) ist eine Technik zur Realisierung von Interprozesskommunikation. Sie ermöglicht den Aufruf von Funktionen in anderen Adressräumen. Im Normalfall werden die aufgerufenen Funktionen auf einem anderen Computer als das aufrufende Programm ausgeführt. Es existieren viele Implementierungen dieser Technik, in der Regel sind sie untereinander nicht kompatibel

Die mbed Plattform beinhaltet eine RPC Library, welche ausgesuchte mbed Objekte (DigitalPin, DigitalOut etc.) mittels Serieller Schnittstelle oder via HTTP Aufrufen, zur Verfügung stellt.

Die mbed RCP Klassen verwenden C++ Templates, siehe Zeilen mit <Argument> und den Namespace RPC, siehe Zeilen mit RPC::.

Client

mbed-rpc/RPCVariable.h@11:43e28c85fd75, 2015-04-08 (annotated)

Committer:
stefan1691
Date:
Wed Apr 08 12:31:41 2015 +0000
Revision:
11:43e28c85fd75
Korrektur AnalogIn laut . https://developer.mbed.org/questions/3897/AnalogIn-not-working-in-rpc/

Who changed what in which revision?

UserRevisionLine numberNew contents of line
stefan1691 11:43e28c85fd75 1 /* mbed Microcontroller Library
stefan1691 11:43e28c85fd75 2 * Copyright (c) 2006-2013 ARM Limited
stefan1691 11:43e28c85fd75 3 *
stefan1691 11:43e28c85fd75 4 * Licensed under the Apache License, Version 2.0 (the "License");
stefan1691 11:43e28c85fd75 5 * you may not use this file except in compliance with the License.
stefan1691 11:43e28c85fd75 6 * You may obtain a copy of the License at
stefan1691 11:43e28c85fd75 7 *
stefan1691 11:43e28c85fd75 8 * http://www.apache.org/licenses/LICENSE-2.0
stefan1691 11:43e28c85fd75 9 *
stefan1691 11:43e28c85fd75 10 * Unless required by applicable law or agreed to in writing, software
stefan1691 11:43e28c85fd75 11 * distributed under the License is distributed on an "AS IS" BASIS,
stefan1691 11:43e28c85fd75 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
stefan1691 11:43e28c85fd75 13 * See the License for the specific language governing permissions and
stefan1691 11:43e28c85fd75 14 * limitations under the License.
stefan1691 11:43e28c85fd75 15 */
stefan1691 11:43e28c85fd75 16 #ifndef RPCVARIABLE_H_
stefan1691 11:43e28c85fd75 17 #define RPCVARIABLE_H_
stefan1691 11:43e28c85fd75 18
stefan1691 11:43e28c85fd75 19 #include "rpc.h"
stefan1691 11:43e28c85fd75 20
stefan1691 11:43e28c85fd75 21 namespace mbed {
stefan1691 11:43e28c85fd75 22
stefan1691 11:43e28c85fd75 23 /**
stefan1691 11:43e28c85fd75 24 *Class to read and set an attached variable using the RPC
stefan1691 11:43e28c85fd75 25 *
stefan1691 11:43e28c85fd75 26 */
stefan1691 11:43e28c85fd75 27 template<class T>
stefan1691 11:43e28c85fd75 28 class RPCVariable: public RPC {
stefan1691 11:43e28c85fd75 29 public:
stefan1691 11:43e28c85fd75 30 /**
stefan1691 11:43e28c85fd75 31 * Constructor
stefan1691 11:43e28c85fd75 32 *
stefan1691 11:43e28c85fd75 33 *@param ptr Pointer to the variable to make accessible over RPC. Any type of
stefan1691 11:43e28c85fd75 34 *variable can be connected
stefan1691 11:43e28c85fd75 35 *@param name The name of that this object will be over RPC
stefan1691 11:43e28c85fd75 36 */
stefan1691 11:43e28c85fd75 37 template<class A>
stefan1691 11:43e28c85fd75 38 RPCVariable(A * ptr, const char * name) : RPC(name) {
stefan1691 11:43e28c85fd75 39 _ptr = ptr;
stefan1691 11:43e28c85fd75 40 }
stefan1691 11:43e28c85fd75 41 /**
stefan1691 11:43e28c85fd75 42 *Read the variable over RPC.
stefan1691 11:43e28c85fd75 43 *
stefan1691 11:43e28c85fd75 44 *@return The value of the variable
stefan1691 11:43e28c85fd75 45 */
stefan1691 11:43e28c85fd75 46 T read() {
stefan1691 11:43e28c85fd75 47 return (*_ptr);
stefan1691 11:43e28c85fd75 48 }
stefan1691 11:43e28c85fd75 49 /**
stefan1691 11:43e28c85fd75 50 *Write a value to the variable over RPC
stefan1691 11:43e28c85fd75 51 *
stefan1691 11:43e28c85fd75 52 *@param The value to be written to the attached variable.
stefan1691 11:43e28c85fd75 53 */
stefan1691 11:43e28c85fd75 54 void write(T value) {
stefan1691 11:43e28c85fd75 55 *_ptr = value;
stefan1691 11:43e28c85fd75 56 }
stefan1691 11:43e28c85fd75 57
stefan1691 11:43e28c85fd75 58 virtual const struct rpc_method *get_rpc_methods();
stefan1691 11:43e28c85fd75 59 static struct rpc_class *get_rpc_class();
stefan1691 11:43e28c85fd75 60
stefan1691 11:43e28c85fd75 61 private:
stefan1691 11:43e28c85fd75 62 T * _ptr;
stefan1691 11:43e28c85fd75 63 };
stefan1691 11:43e28c85fd75 64
stefan1691 11:43e28c85fd75 65 template<class T>
stefan1691 11:43e28c85fd75 66 const rpc_method *RPCVariable<T>::get_rpc_methods() {
stefan1691 11:43e28c85fd75 67 static const rpc_method rpc_methods[] = {
stefan1691 11:43e28c85fd75 68 {"read" , rpc_method_caller<T, RPCVariable, &RPCVariable::read> },
stefan1691 11:43e28c85fd75 69 {"write", rpc_method_caller<RPCVariable, T, &RPCVariable::write> },
stefan1691 11:43e28c85fd75 70 RPC_METHOD_SUPER(RPC)
stefan1691 11:43e28c85fd75 71 };
stefan1691 11:43e28c85fd75 72 return rpc_methods;
stefan1691 11:43e28c85fd75 73 }
stefan1691 11:43e28c85fd75 74
stefan1691 11:43e28c85fd75 75 template<class T>
stefan1691 11:43e28c85fd75 76 rpc_class *RPCVariable<T>::get_rpc_class() {
stefan1691 11:43e28c85fd75 77 static const rpc_function funcs[] = {
stefan1691 11:43e28c85fd75 78 "new", rpc_function_caller<const char*, T, const char*, &RPC::construct<RPCVariable, T, const char*> > ,
stefan1691 11:43e28c85fd75 79 RPC_METHOD_END
stefan1691 11:43e28c85fd75 80 };
stefan1691 11:43e28c85fd75 81 static rpc_class c = {"RPCVariable", funcs, NULL};
stefan1691 11:43e28c85fd75 82 return &c;
stefan1691 11:43e28c85fd75 83 }
stefan1691 11:43e28c85fd75 84
stefan1691 11:43e28c85fd75 85 }
stefan1691 11:43e28c85fd75 86
stefan1691 11:43e28c85fd75 87 #endif //RPCVARIABLE_H_