hirifumi mikage / EthernetNetIf

EthernetNetIf

Dependents:   XBee_WiFi_EA_LPC4088

if/lwip/lwipNetUdpSocket.h@0:62580107d20c, 2014-11-19 (annotated)

Committer:
hmike
Date:
Wed Nov 19 12:00:42 2014 +0000
Revision:
0:62580107d20c
EthernetNetIf

Who changed what in which revision?

UserRevisionLine numberNew contents of line
hmike 0:62580107d20c 1
hmike 0:62580107d20c 2 /*
hmike 0:62580107d20c 3 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
hmike 0:62580107d20c 4
hmike 0:62580107d20c 5 Permission is hereby granted, free of charge, to any person obtaining a copy
hmike 0:62580107d20c 6 of this software and associated documentation files (the "Software"), to deal
hmike 0:62580107d20c 7 in the Software without restriction, including without limitation the rights
hmike 0:62580107d20c 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
hmike 0:62580107d20c 9 copies of the Software, and to permit persons to whom the Software is
hmike 0:62580107d20c 10 furnished to do so, subject to the following conditions:
hmike 0:62580107d20c 11
hmike 0:62580107d20c 12 The above copyright notice and this permission notice shall be included in
hmike 0:62580107d20c 13 all copies or substantial portions of the Software.
hmike 0:62580107d20c 14
hmike 0:62580107d20c 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
hmike 0:62580107d20c 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
hmike 0:62580107d20c 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
hmike 0:62580107d20c 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
hmike 0:62580107d20c 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
hmike 0:62580107d20c 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
hmike 0:62580107d20c 21 THE SOFTWARE.
hmike 0:62580107d20c 22 */
hmike 0:62580107d20c 23
hmike 0:62580107d20c 24 #ifndef LWIPNETUDPSOCKET_H
hmike 0:62580107d20c 25 #define LWIPNETUDPSOCKET_H
hmike 0:62580107d20c 26
hmike 0:62580107d20c 27 #define NET_LWIP_STACK 1
hmike 0:62580107d20c 28 //#include "lwip/ip_addr.h"
hmike 0:62580107d20c 29 #include "if/net/netudpsocket.h"
hmike 0:62580107d20c 30 #include "LwipNetIf.h"
hmike 0:62580107d20c 31
hmike 0:62580107d20c 32 #include "stdint.h"
hmike 0:62580107d20c 33
hmike 0:62580107d20c 34 #include <list>
hmike 0:62580107d20c 35 using std::list;
hmike 0:62580107d20c 36
hmike 0:62580107d20c 37 //Implements NetUdpSockets over lwIP raw API
hmike 0:62580107d20c 38
hmike 0:62580107d20c 39 struct udp_pcb; //Represents a Udp Connection, "Protocol Control Block", see rawapi.txt & udp.h
hmike 0:62580107d20c 40 struct pbuf; //Lwip Buffer Container
hmike 0:62580107d20c 41 typedef struct ip_addr ip_addr_t;
hmike 0:62580107d20c 42
hmike 0:62580107d20c 43 //typedef signed char err_t;
hmike 0:62580107d20c 44 typedef uint16_t u16_t;
hmike 0:62580107d20c 45
hmike 0:62580107d20c 46 class LwipNetUdpSocket: public NetUdpSocket
hmike 0:62580107d20c 47 {
hmike 0:62580107d20c 48 public:
hmike 0:62580107d20c 49 LwipNetUdpSocket(udp_pcb* pPcb = NULL); //Passes a pcb if already created (by an accept req for instance), in that case transfers ownership
hmike 0:62580107d20c 50 virtual ~LwipNetUdpSocket();
hmike 0:62580107d20c 51
hmike 0:62580107d20c 52 virtual NetUdpSocketErr bind(const Host& me);
hmike 0:62580107d20c 53
hmike 0:62580107d20c 54 virtual int /*if < 0 : NetUdpSocketErr*/ sendto(const char* buf, int len, Host* pHost);
hmike 0:62580107d20c 55 virtual int /*if < 0 : NetUdpSocketErr*/ recvfrom(char* buf, int len, Host* pHost);
hmike 0:62580107d20c 56
hmike 0:62580107d20c 57 virtual NetUdpSocketErr close();
hmike 0:62580107d20c 58
hmike 0:62580107d20c 59 virtual NetUdpSocketErr poll();
hmike 0:62580107d20c 60
hmike 0:62580107d20c 61 protected:
hmike 0:62580107d20c 62 volatile udp_pcb* m_pPcb;
hmike 0:62580107d20c 63
hmike 0:62580107d20c 64 //Event callback from lwIp
hmike 0:62580107d20c 65 void recvCb(udp_pcb* pcb, struct pbuf* p, ip_addr_t* addr, u16_t port);
hmike 0:62580107d20c 66
hmike 0:62580107d20c 67 private:
hmike 0:62580107d20c 68 void cleanUp(); //Flush input buffer
hmike 0:62580107d20c 69 struct InPacket
hmike 0:62580107d20c 70 {
hmike 0:62580107d20c 71 volatile pbuf* pBuf;
hmike 0:62580107d20c 72 ip_addr_t addr;
hmike 0:62580107d20c 73 u16_t port;
hmike 0:62580107d20c 74 };
hmike 0:62580107d20c 75
hmike 0:62580107d20c 76 list<InPacket> m_lInPkt;
hmike 0:62580107d20c 77 IpAddr m_multicastGroup;
hmike 0:62580107d20c 78
hmike 0:62580107d20c 79 //Static callback : Transforms into a C++ callback
hmike 0:62580107d20c 80 static void sRecvCb(void *arg, struct udp_pcb *pcb, struct pbuf *p, ip_addr_t *addr, u16_t port);
hmike 0:62580107d20c 81
hmike 0:62580107d20c 82 };
hmike 0:62580107d20c 83
hmike 0:62580107d20c 84 #endif