Varun Nambiar / Mbed 2 deprecated RPC_Function_Example

Tutorial Code for working with RPC Functions

Dependencies:   RPCInterface mbed

Fork of RPC_Tutorial by Varun Nambiar

main.cpp@1:50a40baa79bf, 2016-03-12 (annotated)

Committer:
nambvarun
Date:
Sat Mar 12 02:39:07 2016 +0000
Revision:
1:50a40baa79bf
Parent:
0:74f2764b636b 
RPC Function Example;

Who changed what in which revision?

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nambvarun 0:74f2764b636b 1 #include "mbed.h"
nambvarun 0:74f2764b636b 2 #include "mbed_rpc.h"
nambvarun 0:74f2764b636b 3
nambvarun 0:74f2764b636b 4 /**
nambvarun 0:74f2764b636b 5 * This example program has been updated to use the RPC implementation in the new mbed libraries.
nambvarun 0:74f2764b636b 6 * This example demonstrates using RPC over serial
nambvarun 0:74f2764b636b 7 */
nambvarun 0:74f2764b636b 8
nambvarun 0:74f2764b636b 9 Serial pc(USBTX, USBRX);
nambvarun 0:74f2764b636b 10 void moveTo(Arguments *in, Reply *out);
nambvarun 0:74f2764b636b 11 RPCFunction rpcMove(&moveTo, "moveTo");
nambvarun 0:74f2764b636b 12 double xLoc, yLoc;
nambvarun 0:74f2764b636b 13
nambvarun 0:74f2764b636b 14 int main() {
nambvarun 0:74f2764b636b 15 //The mbed RPC classes are now wrapped to create an RPC enabled version - see RpcClasses.h so don't add to base class
nambvarun 0:74f2764b636b 16
nambvarun 0:74f2764b636b 17 // receive commands, and send back the responses
nambvarun 0:74f2764b636b 18 char buf[256], outbuf[256];
nambvarun 0:74f2764b636b 19 while(1) {
nambvarun 0:74f2764b636b 20 pc.gets(buf, 256);
nambvarun 0:74f2764b636b 21 //Call the static call method on the RPC class
nambvarun 0:74f2764b636b 22 RPC::call(buf, outbuf);
nambvarun 0:74f2764b636b 23 pc.printf("%s\n", outbuf);
nambvarun 0:74f2764b636b 24 }
nambvarun 0:74f2764b636b 25 }
nambvarun 0:74f2764b636b 26
nambvarun 0:74f2764b636b 27 // Make sure the method takes in Arguments and Reply objects.
nambvarun 0:74f2764b636b 28 void moveTo (Arguments *in, Reply *out) {
nambvarun 0:74f2764b636b 29 bool success = true;
nambvarun 0:74f2764b636b 30
nambvarun 0:74f2764b636b 31 // In this scenario, when using RPC delimit the two arguments with a space.
nambvarun 0:74f2764b636b 32 xLoc = in->getArg<double>();
nambvarun 0:74f2764b636b 33 yLoc = in->getArg<double>();
nambvarun 0:74f2764b636b 34
nambvarun 0:74f2764b636b 35 // Have code here to move robot to location (xLoc, yLoc) and update success.
nambvarun 0:74f2764b636b 36
nambvarun 0:74f2764b636b 37 char buffer[200];
nambvarun 0:74f2764b636b 38 sprintf(buffer, "Successfully moved to location (%f, %f)", xLoc, yLoc);
nambvarun 0:74f2764b636b 39 if (success) {
nambvarun 0:74f2764b636b 40 out->putData(buffer);
nambvarun 0:74f2764b636b 41 } else {
nambvarun 0:74f2764b636b 42 out->putData("Failed to move to location.");
nambvarun 0:74f2764b636b 43 }
nambvarun 0:74f2764b636b 44 }