LwipNetIf.cpp

00001 
00002 /*
00003 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
00004  
00005 Permission is hereby granted, free of charge, to any person obtaining a copy
00006 of this software and associated documentation files (the "Software"), to deal
00007 in the Software without restriction, including without limitation the rights
00008 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
00009 copies of the Software, and to permit persons to whom the Software is
00010 furnished to do so, subject to the following conditions:
00011  
00012 The above copyright notice and this permission notice shall be included in
00013 all copies or substantial portions of the Software.
00014  
00015 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
00016 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
00017 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
00018 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
00019 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
00020 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
00021 THE SOFTWARE.
00022 */
00023 
00024 #include "LwipNetIf.h"
00025 #include "lwip/init.h"
00026 #include "lwip/tcp_impl.h"
00027 #include "lwip/dns.h"
00028 
00029 #include "netCfg.h"
00030 #if NET_LWIP_STACK
00031 
00032 //See doc/rawapi.txt for details
00033 
00034 LwipNetIf::LwipNetIf() : NetIf(), m_tcpTimer(), m_dnsTimer(), m_init(false)
00035 {  
00036 
00037 }
00038 
00039 
00040 LwipNetIf::~LwipNetIf()
00041 {
00042 
00043 }
00044 
00045 void LwipNetIf::init()
00046 {
00047   if(m_init)
00048     return;
00049   m_init=true;
00050   lwip_init(); //init lwip, see init.c for details
00051   
00052   //Setup Clocks
00053   m_tcpTimer.start();
00054   m_dnsTimer.start();
00055   //m_tcpTicker.attach_us( tcp_tmr, TCP_TMR_INTERVAL * 1000 ); //TCP_TMR_INTERVAL = 250 ms in tcp_impl.h
00056   //m_dnsTicker.attach_us( dns_tmr, DNS_TMR_INTERVAL * 1000 ); //DNS_TMR_INTERVAL = 1000 ms in dns.h
00057 }
00058 
00059 NetTcpSocket* LwipNetIf::tcpSocket()  //Create a new tcp socket
00060 {
00061   return new LwipNetTcpSocket();
00062 }
00063 
00064 NetUdpSocket* LwipNetIf::udpSocket()  //Create a new udp socket
00065 {
00066   return new LwipNetUdpSocket();
00067 }
00068 
00069 NetDnsRequest* LwipNetIf::dnsRequest(const char* hostname) //Create a new NetDnsRequest object
00070 {
00071   return new LwipNetDnsRequest(hostname);
00072 }
00073 
00074 NetDnsRequest* LwipNetIf::dnsRequest(Host* pHost) //Create a new NetDnsRequest object
00075 {
00076   return new LwipNetDnsRequest(pHost);
00077 }
00078 
00079 void LwipNetIf::poll()
00080 {
00081   if(m_init && m_tcpTimer.read_ms() >= TCP_TMR_INTERVAL)
00082   {
00083     m_tcpTimer.reset();
00084     tcp_tmr(); //Poll LwIP
00085   }
00086   if(m_init && m_dnsTimer.read_ms() >= DNS_TMR_INTERVAL)
00087   {
00088     m_dnsTimer.reset();
00089     dns_tmr();
00090   }
00091   //Do some stuff...
00092 }
00093 
00094 #endif