Darran Shepherd
/
AutoIpNetStack
Net stack with AutoIP enabled
if/lwip/lwipNetUdpSocket.h
- Committer:
- darran
- Date:
- 2010-07-02
- Revision:
- 0:ac21159e27f4
File content as of revision 0:ac21159e27f4:
/* Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com) 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. */ #ifndef LWIPNETUDPSOCKET_H #define LWIPNETUDPSOCKET_H #define NET_LWIP_STACK 1 #include "lwip/ip_addr.h" #include "if/net/net.h" #include "LwipNetIf.h" #include <list> using std::list; //Implements NetUdpSockets over lwIP raw API struct udp_pcb; //Represents a Udp Connection, "Protocol Control Block", see rawapi.txt & udp.h struct pbuf; //Lwip Buffer Container typedef signed char err_t; class LwipNetUdpSocket: public NetUdpSocket { public: LwipNetUdpSocket(udp_pcb* pPcb = NULL); //Passes a pcb if already created (by an accept req for instance), in that case transfers ownership virtual ~LwipNetUdpSocket(); virtual NetUdpSocketErr bind(const Host& me); virtual int /*if < 0 : NetUdpSocketErr*/ sendto(const char* buf, int len, Host* pHost); virtual int /*if < 0 : NetUdpSocketErr*/ recvfrom(char* buf, int len, Host* pHost); virtual NetUdpSocketErr close(); virtual NetUdpSocketErr poll(); protected: volatile udp_pcb* m_pPcb; //Event callback from lwIp void recvCb(udp_pcb* pcb, struct pbuf* p, ip_addr_t* addr, u16_t port); private: void cleanUp(); //Flush input buffer struct InPacket { volatile pbuf* pBuf; ip_addr_t addr; u16_t port; }; list<InPacket> m_lInPkt; //Static callback : Transforms into a C++ callback static void sRecvCb(void *arg, struct udp_pcb *pcb, struct pbuf *p, ip_addr_t *addr, u16_t port); }; #endif