Nino Der Kinderen / Mbed 2 deprecated InetTest

Embedded C project:18/12/2014

Dependencies:   DS1307 TextLCD mbed

RPCInterface/RPCFunction.cpp@0:8d87bc453349, 2014-12-18 (annotated)

Committer:
ninoderkinderen
Date:
Thu Dec 18 09:35:49 2014 +0000
Revision:
0:8d87bc453349
Programma embedded C

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ninoderkinderen 0:8d87bc453349 1 /**
ninoderkinderen 0:8d87bc453349 2 * @section LICENSE
ninoderkinderen 0:8d87bc453349 3 *Copyright (c) 2010 ARM Ltd.
ninoderkinderen 0:8d87bc453349 4 *
ninoderkinderen 0:8d87bc453349 5 *Permission is hereby granted, free of charge, to any person obtaining a copy
ninoderkinderen 0:8d87bc453349 6 *of this software and associated documentation files (the "Software"), to deal
ninoderkinderen 0:8d87bc453349 7 *in the Software without restriction, including without limitation the rights
ninoderkinderen 0:8d87bc453349 8 *to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
ninoderkinderen 0:8d87bc453349 9 *copies of the Software, and to permit persons to whom the Software is
ninoderkinderen 0:8d87bc453349 10 *furnished to do so, subject to the following conditions:
ninoderkinderen 0:8d87bc453349 11 *
ninoderkinderen 0:8d87bc453349 12 *The above copyright notice and this permission notice shall be included in
ninoderkinderen 0:8d87bc453349 13 *all copies or substantial portions of the Software.
ninoderkinderen 0:8d87bc453349 14 *
ninoderkinderen 0:8d87bc453349 15 *THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
ninoderkinderen 0:8d87bc453349 16 *IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
ninoderkinderen 0:8d87bc453349 17 *FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
ninoderkinderen 0:8d87bc453349 18 *AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
ninoderkinderen 0:8d87bc453349 19 *LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
ninoderkinderen 0:8d87bc453349 20 *OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
ninoderkinderen 0:8d87bc453349 21 *THE SOFTWARE.
ninoderkinderen 0:8d87bc453349 22 *
ninoderkinderen 0:8d87bc453349 23 * @section Description
ninoderkinderen 0:8d87bc453349 24 *This class provides an object which can be called over RPC to run the function which is attached to it.
ninoderkinderen 0:8d87bc453349 25 *
ninoderkinderen 0:8d87bc453349 26 */
ninoderkinderen 0:8d87bc453349 27 #include "RPCFunction.h"
ninoderkinderen 0:8d87bc453349 28 #include "rpc.h"
ninoderkinderen 0:8d87bc453349 29
ninoderkinderen 0:8d87bc453349 30 //Parse a char argument without delimiting by anything that is non alphanumeric - based on version in rpc.h line 153
ninoderkinderen 0:8d87bc453349 31 char *parse_arg_char(const char *arg, const char **next) {
ninoderkinderen 0:8d87bc453349 32 const char *ptr = arg;
ninoderkinderen 0:8d87bc453349 33 char *res = NULL;
ninoderkinderen 0:8d87bc453349 34 if(*arg == '"') {
ninoderkinderen 0:8d87bc453349 35 /* quoted string */
ninoderkinderen 0:8d87bc453349 36 ptr = ++arg;
ninoderkinderen 0:8d87bc453349 37 int len = 0;
ninoderkinderen 0:8d87bc453349 38 /* find the end (and length) of the quoted string */
ninoderkinderen 0:8d87bc453349 39 for(char c = *ptr; c != 0 && c != '"'; c = *++ptr) {
ninoderkinderen 0:8d87bc453349 40 len++;
ninoderkinderen 0:8d87bc453349 41 if(c == '\\') {
ninoderkinderen 0:8d87bc453349 42 ptr++;
ninoderkinderen 0:8d87bc453349 43 }
ninoderkinderen 0:8d87bc453349 44 }
ninoderkinderen 0:8d87bc453349 45 /* copy the quoted string, and unescape characters */
ninoderkinderen 0:8d87bc453349 46 if(len != 0) {
ninoderkinderen 0:8d87bc453349 47 res = new char[len+1];
ninoderkinderen 0:8d87bc453349 48 char *resptr = res;
ninoderkinderen 0:8d87bc453349 49 while(arg != ptr) {
ninoderkinderen 0:8d87bc453349 50 *resptr++ = parse_char(arg, &arg);
ninoderkinderen 0:8d87bc453349 51 }
ninoderkinderen 0:8d87bc453349 52 *resptr = 0;
ninoderkinderen 0:8d87bc453349 53 }
ninoderkinderen 0:8d87bc453349 54 } else {
ninoderkinderen 0:8d87bc453349 55 /* unquoted string */
ninoderkinderen 0:8d87bc453349 56 while(isalnum(*ptr) || isgraph(*ptr) || *ptr=='_' || *ptr == ' ') { //Edit this line to change which types of characters are allowed and which delimit
ninoderkinderen 0:8d87bc453349 57 ptr++;
ninoderkinderen 0:8d87bc453349 58 }
ninoderkinderen 0:8d87bc453349 59 int len = ptr-arg;
ninoderkinderen 0:8d87bc453349 60 if(len!=0) { //Chnages made to just pass whole string with no next arg or delimiters, these changes just removes space at the beginning
ninoderkinderen 0:8d87bc453349 61 res = new char[len]; //was len+1
ninoderkinderen 0:8d87bc453349 62 memcpy(res, arg + 1, len - 1); // was arg, len
ninoderkinderen 0:8d87bc453349 63 res[len-1] = 0; //was len
ninoderkinderen 0:8d87bc453349 64 }
ninoderkinderen 0:8d87bc453349 65 }
ninoderkinderen 0:8d87bc453349 66
ninoderkinderen 0:8d87bc453349 67 if(next != NULL) {
ninoderkinderen 0:8d87bc453349 68 *next = ptr;
ninoderkinderen 0:8d87bc453349 69 }
ninoderkinderen 0:8d87bc453349 70 return res;
ninoderkinderen 0:8d87bc453349 71 }
ninoderkinderen 0:8d87bc453349 72
ninoderkinderen 0:8d87bc453349 73 //Custom rpc method caller for execute so that the string will not be delimited by anything
ninoderkinderen 0:8d87bc453349 74 //See line 436 of rpc.h
ninoderkinderen 0:8d87bc453349 75 void rpc_method_caller_run(Base *this_ptr, const char *arguments, char *result) {
ninoderkinderen 0:8d87bc453349 76
ninoderkinderen 0:8d87bc453349 77 const char *next = arguments;
ninoderkinderen 0:8d87bc453349 78 char* arg1 = parse_arg_char(next,NULL);
ninoderkinderen 0:8d87bc453349 79
ninoderkinderen 0:8d87bc453349 80 char * res = (static_cast<RPCFunction*>(this_ptr)->run)(arg1);
ninoderkinderen 0:8d87bc453349 81 if(result != NULL) {
ninoderkinderen 0:8d87bc453349 82 write_result<char*>(res, result);
ninoderkinderen 0:8d87bc453349 83 }
ninoderkinderen 0:8d87bc453349 84 }
ninoderkinderen 0:8d87bc453349 85
ninoderkinderen 0:8d87bc453349 86 RPCFunction::RPCFunction(void(*f)(char*, char*), const char* name) : Base(name){
ninoderkinderen 0:8d87bc453349 87 _ftr = f;
ninoderkinderen 0:8d87bc453349 88 }
ninoderkinderen 0:8d87bc453349 89
ninoderkinderen 0:8d87bc453349 90
ninoderkinderen 0:8d87bc453349 91 //Just run the attached function using the string thats in private memory - or just using null values,
ninoderkinderen 0:8d87bc453349 92 char * RPCFunction::run(char * input){
ninoderkinderen 0:8d87bc453349 93 strcpy(_input, input);
ninoderkinderen 0:8d87bc453349 94 (*_ftr)(_input,_output);
ninoderkinderen 0:8d87bc453349 95 return(_output);
ninoderkinderen 0:8d87bc453349 96 }
ninoderkinderen 0:8d87bc453349 97
ninoderkinderen 0:8d87bc453349 98 //Just read the output string
ninoderkinderen 0:8d87bc453349 99 char* RPCFunction::read(){
ninoderkinderen 0:8d87bc453349 100 return(_output);
ninoderkinderen 0:8d87bc453349 101 }
ninoderkinderen 0:8d87bc453349 102
ninoderkinderen 0:8d87bc453349 103
ninoderkinderen 0:8d87bc453349 104 #ifdef MBED_RPC
ninoderkinderen 0:8d87bc453349 105 const rpc_method *RPCFunction::get_rpc_methods() {
ninoderkinderen 0:8d87bc453349 106 static const rpc_method rpc_methods[] = {
ninoderkinderen 0:8d87bc453349 107 { "run", rpc_method_caller_run }, //Run using custom caller, all characters accepted in string
ninoderkinderen 0:8d87bc453349 108 { "read", rpc_method_caller<char*, RPCFunction, &RPCFunction::read> },
ninoderkinderen 0:8d87bc453349 109 RPC_METHOD_SUPER(Base)
ninoderkinderen 0:8d87bc453349 110 };
ninoderkinderen 0:8d87bc453349 111 return rpc_methods;
ninoderkinderen 0:8d87bc453349 112 }
ninoderkinderen 0:8d87bc453349 113
ninoderkinderen 0:8d87bc453349 114 #endif