Angel David Yaguana Hernandez / EthernetNetIf

Dependents:   RTnoV3 RTnoV3_LED RTnoV3_Template RTnoV3_ADC ... more

LPC1768/if/lwip/lwipNetUdpSocket.h@0:479ce5546098, 2011-12-31 (annotated)

Committer:
sherckuith
Date:
Sat Dec 31 11:25:27 2011 +0000
Revision:
0:479ce5546098
Ethernet

Who changed what in which revision?

UserRevisionLine numberNew contents of line
sherckuith 0:479ce5546098 1
sherckuith 0:479ce5546098 2 /*
sherckuith 0:479ce5546098 3 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
sherckuith 0:479ce5546098 4
sherckuith 0:479ce5546098 5 Permission is hereby granted, free of charge, to any person obtaining a copy
sherckuith 0:479ce5546098 6 of this software and associated documentation files (the "Software"), to deal
sherckuith 0:479ce5546098 7 in the Software without restriction, including without limitation the rights
sherckuith 0:479ce5546098 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
sherckuith 0:479ce5546098 9 copies of the Software, and to permit persons to whom the Software is
sherckuith 0:479ce5546098 10 furnished to do so, subject to the following conditions:
sherckuith 0:479ce5546098 11
sherckuith 0:479ce5546098 12 The above copyright notice and this permission notice shall be included in
sherckuith 0:479ce5546098 13 all copies or substantial portions of the Software.
sherckuith 0:479ce5546098 14
sherckuith 0:479ce5546098 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
sherckuith 0:479ce5546098 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
sherckuith 0:479ce5546098 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
sherckuith 0:479ce5546098 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
sherckuith 0:479ce5546098 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
sherckuith 0:479ce5546098 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
sherckuith 0:479ce5546098 21 THE SOFTWARE.
sherckuith 0:479ce5546098 22 */
sherckuith 0:479ce5546098 23
sherckuith 0:479ce5546098 24 #ifndef LWIPNETUDPSOCKET_H
sherckuith 0:479ce5546098 25 #define LWIPNETUDPSOCKET_H
sherckuith 0:479ce5546098 26
sherckuith 0:479ce5546098 27 #define NET_LWIP_STACK 1
sherckuith 0:479ce5546098 28 //#include "lwip/ip_addr.h"
sherckuith 0:479ce5546098 29 #include "if/net/netudpsocket.h"
sherckuith 0:479ce5546098 30 #include "LwipNetIf.h"
sherckuith 0:479ce5546098 31
sherckuith 0:479ce5546098 32 #include "stdint.h"
sherckuith 0:479ce5546098 33
sherckuith 0:479ce5546098 34 #include <list>
sherckuith 0:479ce5546098 35 using std::list;
sherckuith 0:479ce5546098 36
sherckuith 0:479ce5546098 37 //Implements NetUdpSockets over lwIP raw API
sherckuith 0:479ce5546098 38
sherckuith 0:479ce5546098 39 struct udp_pcb; //Represents a Udp Connection, "Protocol Control Block", see rawapi.txt & udp.h
sherckuith 0:479ce5546098 40 struct pbuf; //Lwip Buffer Container
sherckuith 0:479ce5546098 41 typedef struct ip_addr ip_addr_t;
sherckuith 0:479ce5546098 42
sherckuith 0:479ce5546098 43 //typedef signed char err_t;
sherckuith 0:479ce5546098 44 typedef uint16_t u16_t;
sherckuith 0:479ce5546098 45
sherckuith 0:479ce5546098 46 class LwipNetUdpSocket: public NetUdpSocket
sherckuith 0:479ce5546098 47 {
sherckuith 0:479ce5546098 48 public:
sherckuith 0:479ce5546098 49 LwipNetUdpSocket(udp_pcb* pPcb = NULL); //Passes a pcb if already created (by an accept req for instance), in that case transfers ownership
sherckuith 0:479ce5546098 50 virtual ~LwipNetUdpSocket();
sherckuith 0:479ce5546098 51
sherckuith 0:479ce5546098 52 virtual NetUdpSocketErr bind(const Host& me);
sherckuith 0:479ce5546098 53
sherckuith 0:479ce5546098 54 virtual int /*if < 0 : NetUdpSocketErr*/ sendto(const char* buf, int len, Host* pHost);
sherckuith 0:479ce5546098 55 virtual int /*if < 0 : NetUdpSocketErr*/ recvfrom(char* buf, int len, Host* pHost);
sherckuith 0:479ce5546098 56
sherckuith 0:479ce5546098 57 virtual NetUdpSocketErr close();
sherckuith 0:479ce5546098 58
sherckuith 0:479ce5546098 59 virtual NetUdpSocketErr poll();
sherckuith 0:479ce5546098 60
sherckuith 0:479ce5546098 61 protected:
sherckuith 0:479ce5546098 62 volatile udp_pcb* m_pPcb;
sherckuith 0:479ce5546098 63
sherckuith 0:479ce5546098 64 //Event callback from lwIp
sherckuith 0:479ce5546098 65 void recvCb(udp_pcb* pcb, struct pbuf* p, ip_addr_t* addr, u16_t port);
sherckuith 0:479ce5546098 66
sherckuith 0:479ce5546098 67 private:
sherckuith 0:479ce5546098 68 void cleanUp(); //Flush input buffer
sherckuith 0:479ce5546098 69 struct InPacket
sherckuith 0:479ce5546098 70 {
sherckuith 0:479ce5546098 71 volatile pbuf* pBuf;
sherckuith 0:479ce5546098 72 ip_addr_t addr;
sherckuith 0:479ce5546098 73 u16_t port;
sherckuith 0:479ce5546098 74 };
sherckuith 0:479ce5546098 75
sherckuith 0:479ce5546098 76 list<InPacket> m_lInPkt;
sherckuith 0:479ce5546098 77 IpAddr m_multicastGroup;
sherckuith 0:479ce5546098 78
sherckuith 0:479ce5546098 79 //Static callback : Transforms into a C++ callback
sherckuith 0:479ce5546098 80 static void sRecvCb(void *arg, struct udp_pcb *pcb, struct pbuf *p, ip_addr_t *addr, u16_t port);
sherckuith 0:479ce5546098 81
sherckuith 0:479ce5546098 82 };
sherckuith 0:479ce5546098 83
sherckuith 0:479ce5546098 84 #endif