TCPSocketServer.cpp

00001 /* Copyright (C) 2012 mbed.org, MIT License
00002  *
00003  * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
00004  * and associated documentation files (the "Software"), to deal in the Software without restriction,
00005  * including without limitation the rights to use, copy, modify, merge, publish, distribute,
00006  * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
00007  * furnished to do so, subject to the following conditions:
00008  *
00009  * The above copyright notice and this permission notice shall be included in all copies or
00010  * substantial portions of the Software.
00011  *
00012  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
00013  * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
00014  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
00015  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
00016  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
00017  */
00018 
00019 #include "TCPSocketServer.h"
00020 #include <string>
00021 
00022 TCPSocketServer::TCPSocketServer() {}
00023 
00024 // Server initialization
00025 int TCPSocketServer::bind(int port) {
00026     char cmd[20];
00027     
00028     // set TCP protocol
00029     wifi->setProtocol(TCP);
00030     
00031     // set local port
00032     sprintf(cmd, "set i l %d\r", port);
00033     if (!wifi->sendCommand(cmd, "AOK"))
00034         return -1;
00035         
00036     wifi->exit();
00037     return 0;
00038 }
00039 
00040 int TCPSocketServer::listen(int backlog) {
00041     if (backlog != 1)
00042         return -1;
00043     return 0;
00044 }
00045 
00046 
00047 int TCPSocketServer::accept(TCPSocketConnection& connection) {
00048     int nb_available = 0, pos = 0;
00049     char c;
00050     string str;
00051     bool o_find = false;
00052     while (1) {
00053         while(!wifi->readable());
00054         nb_available = wifi->readable();
00055         for (int i = 0; i < nb_available; i++) {
00056             c = wifi->getc();
00057             if (c == '*') {
00058                 o_find = true;
00059             }
00060             if (o_find && c != '\r' && c != '\n') {
00061                 str += c;
00062                 pos = str.find("*OPEN*");
00063                 if (pos != string::npos) {
00064                     wifi->flush();
00065                     return 0;
00066                 }
00067             }
00068         }
00069     }
00070 }