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Dependencies: C12832_lcd LCD_fonts LM75B analogintest3 MMA7660 mbed
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RPCInterface/RPCFunction.cpp
- Committer:
- u0068206
- Date:
- 2015-04-28
- Revision:
- 0:e4782112c3fd
File content as of revision 0:e4782112c3fd:
/** * @section LICENSE *Copyright (c) 2010 ARM Ltd. * *Permission is hereby granted, free of charge, to any person obtaining a copy *of this software and associated documentation files (the "Software"), to deal *in the Software without restriction, including without limitation the rights *to use, copy, modify, merge, publish, distribute, sublicense, and/or sell *copies of the Software, and to permit persons to whom the Software is *furnished to do so, subject to the following conditions: * *The above copyright notice and this permission notice shall be included in *all copies or substantial portions of the Software. * *THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR *IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, *FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE *AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER *LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, *OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN *THE SOFTWARE. * * @section Description *This class provides an object which can be called over RPC to run the function which is attached to it. * */ #include "RPCFunction.h" #include "rpc.h" //Parse a char argument without delimiting by anything that is non alphanumeric - based on version in rpc.h line 153 char *parse_arg_char(const char *arg, const char **next) { const char *ptr = arg; char *res = NULL; if(*arg == '"') { /* quoted string */ ptr = ++arg; int len = 0; /* find the end (and length) of the quoted string */ for(char c = *ptr; c != 0 && c != '"'; c = *++ptr) { len++; if(c == '\\') { ptr++; } } /* copy the quoted string, and unescape characters */ if(len != 0) { res = new char[len+1]; char *resptr = res; while(arg != ptr) { *resptr++ = parse_char(arg, &arg); } *resptr = 0; } } else { /* unquoted string */ while(isalnum(*ptr) || isgraph(*ptr) || *ptr=='_' || *ptr == ' ') { //Edit this line to change which types of characters are allowed and which delimit ptr++; } int len = ptr-arg; if(len!=0) { //Chnages made to just pass whole string with no next arg or delimiters, these changes just removes space at the beginning res = new char[len]; //was len+1 memcpy(res, arg + 1, len - 1); // was arg, len res[len-1] = 0; //was len } } if(next != NULL) { *next = ptr; } return res; } //Custom rpc method caller for execute so that the string will not be delimited by anything //See line 436 of rpc.h void rpc_method_caller_run(Base *this_ptr, const char *arguments, char *result) { const char *next = arguments; char* arg1 = parse_arg_char(next,NULL); char * res = (static_cast<RPCFunction*>(this_ptr)->run)(arg1); if(result != NULL) { write_result<char*>(res, result); } delete arg1; // Seems to stop a memory leak issue which prevented an RPCFunction being run more than ~500 times } RPCFunction::RPCFunction(void(*f)(char*, char*), const char* name) : Base(name){ _ftr = f; } //Just run the attached function using the string thats in private memory - or just using null values, char * RPCFunction::run(char * input){ strcpy(_input, input); (*_ftr)(_input,_output); return(_output); } //Just read the output string char* RPCFunction::read(){ return(_output); } #ifdef MBED_RPC const rpc_method *RPCFunction::get_rpc_methods() { static const rpc_method rpc_methods[] = { { "run", rpc_method_caller_run }, //Run using custom caller, all characters accepted in string { "read", rpc_method_caller<char*, RPCFunction, &RPCFunction::read> }, RPC_METHOD_SUPER(Base) }; return rpc_methods; } #endif