UIPServer.cpp

00001 /*
00002  UIPServer.cpp - Arduino implementation of a UIP wrapper class.
00003  Copyright (c) 2013 Norbert Truchsess <norbert.truchsess@t-online.de>
00004  All rights reserved.
00005 
00006  This program is free software: you can redistribute it and/or modify
00007  it under the terms of the GNU General Public License as published by
00008  the Free Software Foundation, either version 3 of the License, or
00009  (at your option) any later version.
00010 
00011  This program is distributed in the hope that it will be useful,
00012  but WITHOUT ANY WARRANTY; without even the implied warranty of
00013  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00014  GNU General Public License for more details.
00015 
00016  You should have received a copy of the GNU General Public License
00017  along with this program.  If not, see <http://www.gnu.org/licenses/>.
00018   */
00019 #include "UIPEthernet.h"
00020 #include "UIPServer.h"
00021 extern "C"
00022 {
00023 #include "utility/uip-conf.h"
00024 }
00025 /**
00026  * @brief
00027  * @note
00028  * @param
00029  * @retval
00030  */
00031 UIPServer::UIPServer(uint16_t port) :
00032     _port(htons(port))
00033 { }
00034 
00035 /**
00036  * @brief
00037  * @note
00038  * @param
00039  * @retval
00040  */
00041 UIPClient UIPServer::available(void) {
00042     uIPEthernet.tick();
00043     for (uip_userdata_t * data = &UIPClient::all_data[0]; data < &UIPClient::all_data[UIP_CONNS]; data++) {
00044         if
00045         (
00046             data->packets_in[0] != NOBLOCK
00047         &&  (
00048                 ((data->state & UIP_CLIENT_CONNECTED) && uip_conns[data->state & UIP_CLIENT_SOCKETS].lport == _port)
00049             ||  ((data->state & UIP_CLIENT_REMOTECLOSED) && ((uip_userdata_closed_t*)data)->lport == _port)
00050             )
00051         ) return UIPClient(data);
00052     }
00053 
00054     return UIPClient();
00055 }
00056 
00057 /**
00058  * @brief
00059  * @note
00060  * @param
00061  * @retval
00062  */
00063 void UIPServer::begin(void) {
00064     uip_listen(_port);
00065     uIPEthernet.tick();
00066 }
00067 
00068 /**
00069  * @brief
00070  * @note
00071  * @param
00072  * @retval
00073  */
00074 size_t UIPServer::write(uint8_t c) {
00075     return write(&c, 1);
00076 }
00077 
00078 /**
00079  * @brief
00080  * @note
00081  * @param
00082  * @retval
00083  */
00084 size_t UIPServer::write(const uint8_t* buf, size_t size) {
00085     size_t  ret = 0;
00086     for (uip_userdata_t * data = &UIPClient::all_data[0]; data < &UIPClient::all_data[UIP_CONNS]; data++) {
00087         if ((data->state & UIP_CLIENT_CONNECTED) && uip_conns[data->state & UIP_CLIENT_SOCKETS].lport == _port)
00088             ret += UIPClient::_write(data, buf, size);
00089     }
00090 
00091     return ret;
00092 }