Rod Coleman / NetServSB2

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if/lwip/lwipNetUdpSocket.h@0:850eacf3e945, 2011-09-08 (annotated)

Committer:
RodColeman
Date:
Thu Sep 08 10:48:09 2011 +0000
Revision:
0:850eacf3e945
revised fixed length to 178 bytes

Who changed what in which revision?

UserRevisionLine numberNew contents of line
RodColeman 0:850eacf3e945 1
RodColeman 0:850eacf3e945 2 /*
RodColeman 0:850eacf3e945 3 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
RodColeman 0:850eacf3e945 4
RodColeman 0:850eacf3e945 5 Permission is hereby granted, free of charge, to any person obtaining a copy
RodColeman 0:850eacf3e945 6 of this software and associated documentation files (the "Software"), to deal
RodColeman 0:850eacf3e945 7 in the Software without restriction, including without limitation the rights
RodColeman 0:850eacf3e945 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
RodColeman 0:850eacf3e945 9 copies of the Software, and to permit persons to whom the Software is
RodColeman 0:850eacf3e945 10 furnished to do so, subject to the following conditions:
RodColeman 0:850eacf3e945 11
RodColeman 0:850eacf3e945 12 The above copyright notice and this permission notice shall be included in
RodColeman 0:850eacf3e945 13 all copies or substantial portions of the Software.
RodColeman 0:850eacf3e945 14
RodColeman 0:850eacf3e945 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
RodColeman 0:850eacf3e945 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
RodColeman 0:850eacf3e945 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
RodColeman 0:850eacf3e945 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
RodColeman 0:850eacf3e945 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
RodColeman 0:850eacf3e945 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
RodColeman 0:850eacf3e945 21 THE SOFTWARE.
RodColeman 0:850eacf3e945 22 */
RodColeman 0:850eacf3e945 23
RodColeman 0:850eacf3e945 24 #ifndef LWIPNETUDPSOCKET_H
RodColeman 0:850eacf3e945 25 #define LWIPNETUDPSOCKET_H
RodColeman 0:850eacf3e945 26
RodColeman 0:850eacf3e945 27 #define NET_LWIP_STACK 1
RodColeman 0:850eacf3e945 28 //#include "lwip/ip_addr.h"
RodColeman 0:850eacf3e945 29 #include "if/net/netudpsocket.h"
RodColeman 0:850eacf3e945 30 #include "LwipNetIf.h"
RodColeman 0:850eacf3e945 31
RodColeman 0:850eacf3e945 32 #include "stdint.h"
RodColeman 0:850eacf3e945 33
RodColeman 0:850eacf3e945 34 #include <list>
RodColeman 0:850eacf3e945 35 using std::list;
RodColeman 0:850eacf3e945 36
RodColeman 0:850eacf3e945 37 //Implements NetUdpSockets over lwIP raw API
RodColeman 0:850eacf3e945 38
RodColeman 0:850eacf3e945 39 struct udp_pcb; //Represents a Udp Connection, "Protocol Control Block", see rawapi.txt & udp.h
RodColeman 0:850eacf3e945 40 struct pbuf; //Lwip Buffer Container
RodColeman 0:850eacf3e945 41 typedef struct ip_addr ip_addr_t;
RodColeman 0:850eacf3e945 42
RodColeman 0:850eacf3e945 43 //typedef signed char err_t;
RodColeman 0:850eacf3e945 44 typedef uint16_t u16_t;
RodColeman 0:850eacf3e945 45
RodColeman 0:850eacf3e945 46 class LwipNetUdpSocket: public NetUdpSocket
RodColeman 0:850eacf3e945 47 {
RodColeman 0:850eacf3e945 48 public:
RodColeman 0:850eacf3e945 49 LwipNetUdpSocket(udp_pcb* pPcb = NULL); //Passes a pcb if already created (by an accept req for instance), in that case transfers ownership
RodColeman 0:850eacf3e945 50 virtual ~LwipNetUdpSocket();
RodColeman 0:850eacf3e945 51
RodColeman 0:850eacf3e945 52 virtual NetUdpSocketErr bind(const Host& me);
RodColeman 0:850eacf3e945 53
RodColeman 0:850eacf3e945 54 virtual int /*if < 0 : NetUdpSocketErr*/ sendto(const char* buf, int len, Host* pHost);
RodColeman 0:850eacf3e945 55 virtual int /*if < 0 : NetUdpSocketErr*/ recvfrom(char* buf, int len, Host* pHost);
RodColeman 0:850eacf3e945 56
RodColeman 0:850eacf3e945 57 virtual NetUdpSocketErr close();
RodColeman 0:850eacf3e945 58
RodColeman 0:850eacf3e945 59 virtual NetUdpSocketErr poll();
RodColeman 0:850eacf3e945 60
RodColeman 0:850eacf3e945 61 protected:
RodColeman 0:850eacf3e945 62 volatile udp_pcb* m_pPcb;
RodColeman 0:850eacf3e945 63
RodColeman 0:850eacf3e945 64 //Event callback from lwIp
RodColeman 0:850eacf3e945 65 void recvCb(udp_pcb* pcb, struct pbuf* p, ip_addr_t* addr, u16_t port);
RodColeman 0:850eacf3e945 66
RodColeman 0:850eacf3e945 67 private:
RodColeman 0:850eacf3e945 68 void cleanUp(); //Flush input buffer
RodColeman 0:850eacf3e945 69 struct InPacket
RodColeman 0:850eacf3e945 70 {
RodColeman 0:850eacf3e945 71 volatile pbuf* pBuf;
RodColeman 0:850eacf3e945 72 ip_addr_t addr;
RodColeman 0:850eacf3e945 73 u16_t port;
RodColeman 0:850eacf3e945 74 };
RodColeman 0:850eacf3e945 75
RodColeman 0:850eacf3e945 76 list<InPacket> m_lInPkt;
RodColeman 0:850eacf3e945 77 IpAddr m_multicastGroup;
RodColeman 0:850eacf3e945 78
RodColeman 0:850eacf3e945 79 //Static callback : Transforms into a C++ callback
RodColeman 0:850eacf3e945 80 static void sRecvCb(void *arg, struct udp_pcb *pcb, struct pbuf *p, ip_addr_t *addr, u16_t port);
RodColeman 0:850eacf3e945 81
RodColeman 0:850eacf3e945 82 };
RodColeman 0:850eacf3e945 83
RodColeman 0:850eacf3e945 84 #endif