S K UCI / NetServicesMin

Fork of NetServicesMin with some warnings removed

Dependencies:   lwip-sys lwip

Fork of NetServicesMin by Hendrik Lipka

if/lwip/lwipNetUdpSocket.h@0:8b387bed54c2, 2011-01-10 (annotated)

Committer:
hlipka
Date:
Mon Jan 10 21:03:11 2011 +0000
Revision:
0:8b387bed54c2
initial version

Who changed what in which revision?

UserRevisionLine numberNew contents of line
hlipka 0:8b387bed54c2 1
hlipka 0:8b387bed54c2 2 /*
hlipka 0:8b387bed54c2 3 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
hlipka 0:8b387bed54c2 4
hlipka 0:8b387bed54c2 5 Permission is hereby granted, free of charge, to any person obtaining a copy
hlipka 0:8b387bed54c2 6 of this software and associated documentation files (the "Software"), to deal
hlipka 0:8b387bed54c2 7 in the Software without restriction, including without limitation the rights
hlipka 0:8b387bed54c2 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
hlipka 0:8b387bed54c2 9 copies of the Software, and to permit persons to whom the Software is
hlipka 0:8b387bed54c2 10 furnished to do so, subject to the following conditions:
hlipka 0:8b387bed54c2 11
hlipka 0:8b387bed54c2 12 The above copyright notice and this permission notice shall be included in
hlipka 0:8b387bed54c2 13 all copies or substantial portions of the Software.
hlipka 0:8b387bed54c2 14
hlipka 0:8b387bed54c2 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
hlipka 0:8b387bed54c2 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
hlipka 0:8b387bed54c2 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
hlipka 0:8b387bed54c2 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
hlipka 0:8b387bed54c2 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
hlipka 0:8b387bed54c2 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
hlipka 0:8b387bed54c2 21 THE SOFTWARE.
hlipka 0:8b387bed54c2 22 */
hlipka 0:8b387bed54c2 23
hlipka 0:8b387bed54c2 24 #ifndef LWIPNETUDPSOCKET_H
hlipka 0:8b387bed54c2 25 #define LWIPNETUDPSOCKET_H
hlipka 0:8b387bed54c2 26
hlipka 0:8b387bed54c2 27 #define NET_LWIP_STACK 1
hlipka 0:8b387bed54c2 28 //#include "lwip/ip_addr.h"
hlipka 0:8b387bed54c2 29 #include "if/net/netudpsocket.h"
hlipka 0:8b387bed54c2 30 #include "LwipNetIf.h"
hlipka 0:8b387bed54c2 31
hlipka 0:8b387bed54c2 32 #include "stdint.h"
hlipka 0:8b387bed54c2 33
hlipka 0:8b387bed54c2 34 #include <list>
hlipka 0:8b387bed54c2 35 using std::list;
hlipka 0:8b387bed54c2 36
hlipka 0:8b387bed54c2 37 //Implements NetUdpSockets over lwIP raw API
hlipka 0:8b387bed54c2 38
hlipka 0:8b387bed54c2 39 struct udp_pcb; //Represents a Udp Connection, "Protocol Control Block", see rawapi.txt & udp.h
hlipka 0:8b387bed54c2 40 struct pbuf; //Lwip Buffer Container
hlipka 0:8b387bed54c2 41 typedef struct ip_addr ip_addr_t;
hlipka 0:8b387bed54c2 42
hlipka 0:8b387bed54c2 43 //typedef signed char err_t;
hlipka 0:8b387bed54c2 44 typedef uint16_t u16_t;
hlipka 0:8b387bed54c2 45
hlipka 0:8b387bed54c2 46 class LwipNetUdpSocket: public NetUdpSocket
hlipka 0:8b387bed54c2 47 {
hlipka 0:8b387bed54c2 48 public:
hlipka 0:8b387bed54c2 49 LwipNetUdpSocket(udp_pcb* pPcb = NULL); //Passes a pcb if already created (by an accept req for instance), in that case transfers ownership
hlipka 0:8b387bed54c2 50 virtual ~LwipNetUdpSocket();
hlipka 0:8b387bed54c2 51
hlipka 0:8b387bed54c2 52 virtual NetUdpSocketErr bind(const Host& me);
hlipka 0:8b387bed54c2 53
hlipka 0:8b387bed54c2 54 virtual int /*if < 0 : NetUdpSocketErr*/ sendto(const char* buf, int len, Host* pHost);
hlipka 0:8b387bed54c2 55 virtual int /*if < 0 : NetUdpSocketErr*/ recvfrom(char* buf, int len, Host* pHost);
hlipka 0:8b387bed54c2 56
hlipka 0:8b387bed54c2 57 virtual NetUdpSocketErr close();
hlipka 0:8b387bed54c2 58
hlipka 0:8b387bed54c2 59 virtual NetUdpSocketErr poll();
hlipka 0:8b387bed54c2 60
hlipka 0:8b387bed54c2 61 protected:
hlipka 0:8b387bed54c2 62 volatile udp_pcb* m_pPcb;
hlipka 0:8b387bed54c2 63
hlipka 0:8b387bed54c2 64 //Event callback from lwIp
hlipka 0:8b387bed54c2 65 void recvCb(udp_pcb* pcb, struct pbuf* p, ip_addr_t* addr, u16_t port);
hlipka 0:8b387bed54c2 66
hlipka 0:8b387bed54c2 67 private:
hlipka 0:8b387bed54c2 68 void cleanUp(); //Flush input buffer
hlipka 0:8b387bed54c2 69 struct InPacket
hlipka 0:8b387bed54c2 70 {
hlipka 0:8b387bed54c2 71 volatile pbuf* pBuf;
hlipka 0:8b387bed54c2 72 ip_addr_t addr;
hlipka 0:8b387bed54c2 73 u16_t port;
hlipka 0:8b387bed54c2 74 };
hlipka 0:8b387bed54c2 75
hlipka 0:8b387bed54c2 76 list<InPacket> m_lInPkt;
hlipka 0:8b387bed54c2 77 IpAddr m_multicastGroup;
hlipka 0:8b387bed54c2 78
hlipka 0:8b387bed54c2 79 //Static callback : Transforms into a C++ callback
hlipka 0:8b387bed54c2 80 static void sRecvCb(void *arg, struct udp_pcb *pcb, struct pbuf *p, ip_addr_t *addr, u16_t port);
hlipka 0:8b387bed54c2 81
hlipka 0:8b387bed54c2 82 };
hlipka 0:8b387bed54c2 83
hlipka 0:8b387bed54c2 84 #endif