Pranav Sawant / EthernetNetIf

12Oct2012MbedLab

Dependents:   Lab3_VoiceMeter

Fork of EthernetNetIf by Donatien Garnier

LPC1768/if/lwip/lwipNetUdpSocket.h@6:22ce63eddd2b, 2012-10-12 (annotated)

Committer:
psawant9
Date:
Fri Oct 12 16:02:00 2012 +0000
Revision:
6:22ce63eddd2b
Parent:
5:bc7df6da7589 
Done

Who changed what in which revision?

UserRevisionLine numberNew contents of line
psawant9 6:22ce63eddd2b 1
psawant9 6:22ce63eddd2b 2 /*
psawant9 6:22ce63eddd2b 3 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
psawant9 6:22ce63eddd2b 4
psawant9 6:22ce63eddd2b 5 Permission is hereby granted, free of charge, to any person obtaining a copy
psawant9 6:22ce63eddd2b 6 of this software and associated documentation files (the "Software"), to deal
psawant9 6:22ce63eddd2b 7 in the Software without restriction, including without limitation the rights
psawant9 6:22ce63eddd2b 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
psawant9 6:22ce63eddd2b 9 copies of the Software, and to permit persons to whom the Software is
psawant9 6:22ce63eddd2b 10 furnished to do so, subject to the following conditions:
psawant9 6:22ce63eddd2b 11
psawant9 6:22ce63eddd2b 12 The above copyright notice and this permission notice shall be included in
psawant9 6:22ce63eddd2b 13 all copies or substantial portions of the Software.
psawant9 6:22ce63eddd2b 14
psawant9 6:22ce63eddd2b 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
psawant9 6:22ce63eddd2b 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
psawant9 6:22ce63eddd2b 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
psawant9 6:22ce63eddd2b 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
psawant9 6:22ce63eddd2b 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
psawant9 6:22ce63eddd2b 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
psawant9 6:22ce63eddd2b 21 THE SOFTWARE.
psawant9 6:22ce63eddd2b 22 */
psawant9 6:22ce63eddd2b 23
psawant9 6:22ce63eddd2b 24 #ifndef LWIPNETUDPSOCKET_H
psawant9 6:22ce63eddd2b 25 #define LWIPNETUDPSOCKET_H
psawant9 6:22ce63eddd2b 26
psawant9 6:22ce63eddd2b 27 #define NET_LWIP_STACK 1
psawant9 6:22ce63eddd2b 28 //#include "lwip/ip_addr.h"
psawant9 6:22ce63eddd2b 29 #include "if/net/netudpsocket.h"
psawant9 6:22ce63eddd2b 30 #include "LwipNetIf.h"
psawant9 6:22ce63eddd2b 31
psawant9 6:22ce63eddd2b 32 #include "stdint.h"
psawant9 6:22ce63eddd2b 33
psawant9 6:22ce63eddd2b 34 #include <list>
psawant9 6:22ce63eddd2b 35 using std::list;
psawant9 6:22ce63eddd2b 36
psawant9 6:22ce63eddd2b 37 //Implements NetUdpSockets over lwIP raw API
psawant9 6:22ce63eddd2b 38
psawant9 6:22ce63eddd2b 39 struct udp_pcb; //Represents a Udp Connection, "Protocol Control Block", see rawapi.txt & udp.h
psawant9 6:22ce63eddd2b 40 struct pbuf; //Lwip Buffer Container
psawant9 6:22ce63eddd2b 41 typedef struct ip_addr ip_addr_t;
psawant9 6:22ce63eddd2b 42
psawant9 6:22ce63eddd2b 43 //typedef signed char err_t;
psawant9 6:22ce63eddd2b 44 typedef uint16_t u16_t;
psawant9 6:22ce63eddd2b 45
psawant9 6:22ce63eddd2b 46 class LwipNetUdpSocket: public NetUdpSocket
psawant9 6:22ce63eddd2b 47 {
psawant9 6:22ce63eddd2b 48 public:
psawant9 6:22ce63eddd2b 49 LwipNetUdpSocket(udp_pcb* pPcb = NULL); //Passes a pcb if already created (by an accept req for instance), in that case transfers ownership
psawant9 6:22ce63eddd2b 50 virtual ~LwipNetUdpSocket();
psawant9 6:22ce63eddd2b 51
psawant9 6:22ce63eddd2b 52 virtual NetUdpSocketErr bind(const Host& me);
psawant9 6:22ce63eddd2b 53
psawant9 6:22ce63eddd2b 54 virtual int /*if < 0 : NetUdpSocketErr*/ sendto(const char* buf, int len, Host* pHost);
psawant9 6:22ce63eddd2b 55 virtual int /*if < 0 : NetUdpSocketErr*/ recvfrom(char* buf, int len, Host* pHost);
psawant9 6:22ce63eddd2b 56
psawant9 6:22ce63eddd2b 57 virtual NetUdpSocketErr close();
psawant9 6:22ce63eddd2b 58
psawant9 6:22ce63eddd2b 59 virtual NetUdpSocketErr poll();
psawant9 6:22ce63eddd2b 60
psawant9 6:22ce63eddd2b 61 protected:
psawant9 6:22ce63eddd2b 62 volatile udp_pcb* m_pPcb;
psawant9 6:22ce63eddd2b 63
psawant9 6:22ce63eddd2b 64 //Event callback from lwIp
psawant9 6:22ce63eddd2b 65 void recvCb(udp_pcb* pcb, struct pbuf* p, ip_addr_t* addr, u16_t port);
psawant9 6:22ce63eddd2b 66
psawant9 6:22ce63eddd2b 67 private:
psawant9 6:22ce63eddd2b 68 void cleanUp(); //Flush input buffer
psawant9 6:22ce63eddd2b 69 struct InPacket
psawant9 6:22ce63eddd2b 70 {
psawant9 6:22ce63eddd2b 71 volatile pbuf* pBuf;
psawant9 6:22ce63eddd2b 72 ip_addr_t addr;
psawant9 6:22ce63eddd2b 73 u16_t port;
psawant9 6:22ce63eddd2b 74 };
psawant9 6:22ce63eddd2b 75
psawant9 6:22ce63eddd2b 76 list<InPacket> m_lInPkt;
psawant9 6:22ce63eddd2b 77 IpAddr m_multicastGroup;
psawant9 6:22ce63eddd2b 78
psawant9 6:22ce63eddd2b 79 //Static callback : Transforms into a C++ callback
psawant9 6:22ce63eddd2b 80 static void sRecvCb(void *arg, struct udp_pcb *pcb, struct pbuf *p, ip_addr_t *addr, u16_t port);
psawant9 6:22ce63eddd2b 81
psawant9 6:22ce63eddd2b 82 };
psawant9 6:22ce63eddd2b 83
psawant9 6:22ce63eddd2b 84 #endif