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 #include "TCPSocketServer.h"
00019 #include "debug.h"
00020 
00021 #include <cstring>
00022 
00023 using std::memset;
00024 using std::memcpy;
00025 
00026 TCPSocketServer::TCPSocketServer() {
00027     
00028 }
00029 
00030 int TCPSocketServer::bind(int port) {
00031     if (init_socket(SOCK_STREAM) < 0)
00032         return -1;
00033     
00034     struct sockaddr_in localHost;
00035     memset(&localHost, 0, sizeof(localHost));
00036     
00037     localHost.sin_family = AF_INET;
00038     localHost.sin_port = htons(port);
00039     localHost.sin_addr.s_addr = INADDR_ANY;
00040     
00041     if (lwip_bind(_sock_fd, (const struct sockaddr *) &localHost, sizeof(localHost)) < 0) {
00042         close();
00043         return -1;
00044     }
00045     
00046     return 0;
00047 }
00048 
00049 int TCPSocketServer::listen(int max) {
00050     if (_sock_fd < 0)
00051         return -1;
00052     
00053     if (lwip_listen(_sock_fd, max) < 0) {
00054         close();
00055         return -1;
00056     }
00057     
00058     return 0;
00059 }
00060 
00061 int TCPSocketServer::accept(TCPSocketConnection& connection) {
00062     debug_msg("");
00063     if (_sock_fd < 0)
00064         return -1;
00065     
00066     if (!_blocking) {
00067         debug_msg("");
00068         TimeInterval timeout(_timeout);
00069         if (wait_readable(timeout) != 0)
00070             return -1;
00071     }
00072     debug_msg("");
00073     connection.reset_address();
00074     debug_msg("");
00075     socklen_t newSockRemoteHostLen = sizeof(connection._remoteHost);
00076     debug_msg("");
00077     int fd = lwip_accept(_sock_fd, (struct sockaddr*) &connection._remoteHost, &newSockRemoteHostLen);
00078     if (fd < 0)
00079         return -1; //Accept failed
00080     debug_msg("");
00081     connection._sock_fd = fd;
00082     debug_msg("");
00083     connection._is_connected = true;
00084     
00085     return 0;
00086 }