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NetServices/if/lwip/lwipNetUdpSocket.h@0:05ccbd4f84f1, 2013-12-02 (annotated)

Committer:
hendrikvincent
Date:
Mon Dec 02 09:01:23 2013 +0000
Revision:
0:05ccbd4f84f1
eerste programma;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
hendrikvincent 0:05ccbd4f84f1 1
hendrikvincent 0:05ccbd4f84f1 2 /*
hendrikvincent 0:05ccbd4f84f1 3 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
hendrikvincent 0:05ccbd4f84f1 4
hendrikvincent 0:05ccbd4f84f1 5 Permission is hereby granted, free of charge, to any person obtaining a copy
hendrikvincent 0:05ccbd4f84f1 6 of this software and associated documentation files (the "Software"), to deal
hendrikvincent 0:05ccbd4f84f1 7 in the Software without restriction, including without limitation the rights
hendrikvincent 0:05ccbd4f84f1 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
hendrikvincent 0:05ccbd4f84f1 9 copies of the Software, and to permit persons to whom the Software is
hendrikvincent 0:05ccbd4f84f1 10 furnished to do so, subject to the following conditions:
hendrikvincent 0:05ccbd4f84f1 11
hendrikvincent 0:05ccbd4f84f1 12 The above copyright notice and this permission notice shall be included in
hendrikvincent 0:05ccbd4f84f1 13 all copies or substantial portions of the Software.
hendrikvincent 0:05ccbd4f84f1 14
hendrikvincent 0:05ccbd4f84f1 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
hendrikvincent 0:05ccbd4f84f1 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
hendrikvincent 0:05ccbd4f84f1 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
hendrikvincent 0:05ccbd4f84f1 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
hendrikvincent 0:05ccbd4f84f1 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
hendrikvincent 0:05ccbd4f84f1 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
hendrikvincent 0:05ccbd4f84f1 21 THE SOFTWARE.
hendrikvincent 0:05ccbd4f84f1 22 */
hendrikvincent 0:05ccbd4f84f1 23
hendrikvincent 0:05ccbd4f84f1 24 #ifndef LWIPNETUDPSOCKET_H
hendrikvincent 0:05ccbd4f84f1 25 #define LWIPNETUDPSOCKET_H
hendrikvincent 0:05ccbd4f84f1 26
hendrikvincent 0:05ccbd4f84f1 27 #define NET_LWIP_STACK 1
hendrikvincent 0:05ccbd4f84f1 28 //#include "lwip/ip_addr.h"
hendrikvincent 0:05ccbd4f84f1 29 #include "if/net/netudpsocket.h"
hendrikvincent 0:05ccbd4f84f1 30 #include "LwipNetIf.h"
hendrikvincent 0:05ccbd4f84f1 31
hendrikvincent 0:05ccbd4f84f1 32 #include "stdint.h"
hendrikvincent 0:05ccbd4f84f1 33
hendrikvincent 0:05ccbd4f84f1 34 #include <list>
hendrikvincent 0:05ccbd4f84f1 35 using std::list;
hendrikvincent 0:05ccbd4f84f1 36
hendrikvincent 0:05ccbd4f84f1 37 //Implements NetUdpSockets over lwIP raw API
hendrikvincent 0:05ccbd4f84f1 38
hendrikvincent 0:05ccbd4f84f1 39 struct udp_pcb; //Represents a Udp Connection, "Protocol Control Block", see rawapi.txt & udp.h
hendrikvincent 0:05ccbd4f84f1 40 struct pbuf; //Lwip Buffer Container
hendrikvincent 0:05ccbd4f84f1 41 typedef struct ip_addr ip_addr_t;
hendrikvincent 0:05ccbd4f84f1 42
hendrikvincent 0:05ccbd4f84f1 43 //typedef signed char err_t;
hendrikvincent 0:05ccbd4f84f1 44 typedef uint16_t u16_t;
hendrikvincent 0:05ccbd4f84f1 45
hendrikvincent 0:05ccbd4f84f1 46 class LwipNetUdpSocket: public NetUdpSocket
hendrikvincent 0:05ccbd4f84f1 47 {
hendrikvincent 0:05ccbd4f84f1 48 public:
hendrikvincent 0:05ccbd4f84f1 49 LwipNetUdpSocket(udp_pcb* pPcb = NULL); //Passes a pcb if already created (by an accept req for instance), in that case transfers ownership
hendrikvincent 0:05ccbd4f84f1 50 virtual ~LwipNetUdpSocket();
hendrikvincent 0:05ccbd4f84f1 51
hendrikvincent 0:05ccbd4f84f1 52 virtual NetUdpSocketErr bind(const Host& me);
hendrikvincent 0:05ccbd4f84f1 53
hendrikvincent 0:05ccbd4f84f1 54 virtual int /*if < 0 : NetUdpSocketErr*/ sendto(const char* buf, int len, Host* pHost);
hendrikvincent 0:05ccbd4f84f1 55 virtual int /*if < 0 : NetUdpSocketErr*/ recvfrom(char* buf, int len, Host* pHost);
hendrikvincent 0:05ccbd4f84f1 56
hendrikvincent 0:05ccbd4f84f1 57 virtual NetUdpSocketErr close();
hendrikvincent 0:05ccbd4f84f1 58
hendrikvincent 0:05ccbd4f84f1 59 virtual NetUdpSocketErr poll();
hendrikvincent 0:05ccbd4f84f1 60
hendrikvincent 0:05ccbd4f84f1 61 protected:
hendrikvincent 0:05ccbd4f84f1 62 volatile udp_pcb* m_pPcb;
hendrikvincent 0:05ccbd4f84f1 63
hendrikvincent 0:05ccbd4f84f1 64 //Event callback from lwIp
hendrikvincent 0:05ccbd4f84f1 65 void recvCb(udp_pcb* pcb, struct pbuf* p, ip_addr_t* addr, u16_t port);
hendrikvincent 0:05ccbd4f84f1 66
hendrikvincent 0:05ccbd4f84f1 67 private:
hendrikvincent 0:05ccbd4f84f1 68 void cleanUp(); //Flush input buffer
hendrikvincent 0:05ccbd4f84f1 69 struct InPacket
hendrikvincent 0:05ccbd4f84f1 70 {
hendrikvincent 0:05ccbd4f84f1 71 volatile pbuf* pBuf;
hendrikvincent 0:05ccbd4f84f1 72 ip_addr_t addr;
hendrikvincent 0:05ccbd4f84f1 73 u16_t port;
hendrikvincent 0:05ccbd4f84f1 74 };
hendrikvincent 0:05ccbd4f84f1 75
hendrikvincent 0:05ccbd4f84f1 76 list<InPacket> m_lInPkt;
hendrikvincent 0:05ccbd4f84f1 77 IpAddr m_multicastGroup;
hendrikvincent 0:05ccbd4f84f1 78
hendrikvincent 0:05ccbd4f84f1 79 //Static callback : Transforms into a C++ callback
hendrikvincent 0:05ccbd4f84f1 80 static void sRecvCb(void *arg, struct udp_pcb *pcb, struct pbuf *p, ip_addr_t *addr, u16_t port);
hendrikvincent 0:05ccbd4f84f1 81
hendrikvincent 0:05ccbd4f84f1 82 };
hendrikvincent 0:05ccbd4f84f1 83
hendrikvincent 0:05ccbd4f84f1 84 #endif