Darran Shepherd
Net stack with AutoIP enabled
if/lwip/lwipNetUdpSocket.h@0:ac21159e27f4, 2010-07-02 (annotated)
- Committer:
- darran
- Date:
- Fri Jul 02 17:21:58 2010 +0000
- Revision:
- 0:ac21159e27f4
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| darran | 0:ac21159e27f4 | 1 | |
| darran | 0:ac21159e27f4 | 2 | /* |
| darran | 0:ac21159e27f4 | 3 | Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com) |
| darran | 0:ac21159e27f4 | 4 | |
| darran | 0:ac21159e27f4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy |
| darran | 0:ac21159e27f4 | 6 | of this software and associated documentation files (the "Software"), to deal |
| darran | 0:ac21159e27f4 | 7 | in the Software without restriction, including without limitation the rights |
| darran | 0:ac21159e27f4 | 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| darran | 0:ac21159e27f4 | 9 | copies of the Software, and to permit persons to whom the Software is |
| darran | 0:ac21159e27f4 | 10 | furnished to do so, subject to the following conditions: |
| darran | 0:ac21159e27f4 | 11 | |
| darran | 0:ac21159e27f4 | 12 | The above copyright notice and this permission notice shall be included in |
| darran | 0:ac21159e27f4 | 13 | all copies or substantial portions of the Software. |
| darran | 0:ac21159e27f4 | 14 | |
| darran | 0:ac21159e27f4 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| darran | 0:ac21159e27f4 | 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| darran | 0:ac21159e27f4 | 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| darran | 0:ac21159e27f4 | 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| darran | 0:ac21159e27f4 | 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| darran | 0:ac21159e27f4 | 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| darran | 0:ac21159e27f4 | 21 | THE SOFTWARE. |
| darran | 0:ac21159e27f4 | 22 | */ |
| darran | 0:ac21159e27f4 | 23 | |
| darran | 0:ac21159e27f4 | 24 | #ifndef LWIPNETUDPSOCKET_H |
| darran | 0:ac21159e27f4 | 25 | #define LWIPNETUDPSOCKET_H |
| darran | 0:ac21159e27f4 | 26 | |
| darran | 0:ac21159e27f4 | 27 | #define NET_LWIP_STACK 1 |
| darran | 0:ac21159e27f4 | 28 | #include "lwip/ip_addr.h" |
| darran | 0:ac21159e27f4 | 29 | #include "if/net/net.h" |
| darran | 0:ac21159e27f4 | 30 | #include "LwipNetIf.h" |
| darran | 0:ac21159e27f4 | 31 | |
| darran | 0:ac21159e27f4 | 32 | #include <list> |
| darran | 0:ac21159e27f4 | 33 | using std::list; |
| darran | 0:ac21159e27f4 | 34 | |
| darran | 0:ac21159e27f4 | 35 | //Implements NetUdpSockets over lwIP raw API |
| darran | 0:ac21159e27f4 | 36 | |
| darran | 0:ac21159e27f4 | 37 | struct udp_pcb; //Represents a Udp Connection, "Protocol Control Block", see rawapi.txt & udp.h |
| darran | 0:ac21159e27f4 | 38 | struct pbuf; //Lwip Buffer Container |
| darran | 0:ac21159e27f4 | 39 | |
| darran | 0:ac21159e27f4 | 40 | typedef signed char err_t; |
| darran | 0:ac21159e27f4 | 41 | |
| darran | 0:ac21159e27f4 | 42 | class LwipNetUdpSocket: public NetUdpSocket |
| darran | 0:ac21159e27f4 | 43 | { |
| darran | 0:ac21159e27f4 | 44 | public: |
| darran | 0:ac21159e27f4 | 45 | LwipNetUdpSocket(udp_pcb* pPcb = NULL); //Passes a pcb if already created (by an accept req for instance), in that case transfers ownership |
| darran | 0:ac21159e27f4 | 46 | virtual ~LwipNetUdpSocket(); |
| darran | 0:ac21159e27f4 | 47 | |
| darran | 0:ac21159e27f4 | 48 | virtual NetUdpSocketErr bind(const Host& me); |
| darran | 0:ac21159e27f4 | 49 | |
| darran | 0:ac21159e27f4 | 50 | virtual int /*if < 0 : NetUdpSocketErr*/ sendto(const char* buf, int len, Host* pHost); |
| darran | 0:ac21159e27f4 | 51 | virtual int /*if < 0 : NetUdpSocketErr*/ recvfrom(char* buf, int len, Host* pHost); |
| darran | 0:ac21159e27f4 | 52 | |
| darran | 0:ac21159e27f4 | 53 | virtual NetUdpSocketErr close(); |
| darran | 0:ac21159e27f4 | 54 | |
| darran | 0:ac21159e27f4 | 55 | virtual NetUdpSocketErr poll(); |
| darran | 0:ac21159e27f4 | 56 | |
| darran | 0:ac21159e27f4 | 57 | protected: |
| darran | 0:ac21159e27f4 | 58 | volatile udp_pcb* m_pPcb; |
| darran | 0:ac21159e27f4 | 59 | |
| darran | 0:ac21159e27f4 | 60 | //Event callback from lwIp |
| darran | 0:ac21159e27f4 | 61 | void recvCb(udp_pcb* pcb, struct pbuf* p, ip_addr_t* addr, u16_t port); |
| darran | 0:ac21159e27f4 | 62 | |
| darran | 0:ac21159e27f4 | 63 | private: |
| darran | 0:ac21159e27f4 | 64 | void cleanUp(); //Flush input buffer |
| darran | 0:ac21159e27f4 | 65 | struct InPacket |
| darran | 0:ac21159e27f4 | 66 | { |
| darran | 0:ac21159e27f4 | 67 | volatile pbuf* pBuf; |
| darran | 0:ac21159e27f4 | 68 | ip_addr_t addr; |
| darran | 0:ac21159e27f4 | 69 | u16_t port; |
| darran | 0:ac21159e27f4 | 70 | }; |
| darran | 0:ac21159e27f4 | 71 | |
| darran | 0:ac21159e27f4 | 72 | list<InPacket> m_lInPkt; |
| darran | 0:ac21159e27f4 | 73 | |
| darran | 0:ac21159e27f4 | 74 | //Static callback : Transforms into a C++ callback |
| darran | 0:ac21159e27f4 | 75 | static void sRecvCb(void *arg, struct udp_pcb *pcb, struct pbuf *p, ip_addr_t *addr, u16_t port); |
| darran | 0:ac21159e27f4 | 76 | |
| darran | 0:ac21159e27f4 | 77 | }; |
| darran | 0:ac21159e27f4 | 78 | |
| darran | 0:ac21159e27f4 | 79 | #endif |