Net stack with AutoIP enabled

Dependencies:   mbed

Committer:
darran
Date:
Fri Jul 02 17:21:58 2010 +0000
Revision:
0:ac21159e27f4

        

Who changed what in which revision?

UserRevisionLine numberNew 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 NETTCPSOCKET_H
darran 0:ac21159e27f4 25 #define NETTCPSOCKET_H
darran 0:ac21159e27f4 26
darran 0:ac21159e27f4 27 #include "net.h"
darran 0:ac21159e27f4 28 #include "host.h"
darran 0:ac21159e27f4 29
darran 0:ac21159e27f4 30 #include <queue>
darran 0:ac21159e27f4 31 using std::queue;
darran 0:ac21159e27f4 32
darran 0:ac21159e27f4 33 //Implements a Berkeley-like socket if
darran 0:ac21159e27f4 34 //Can be interfaced either to lwip or a Telit module
darran 0:ac21159e27f4 35
darran 0:ac21159e27f4 36 enum NetTcpSocketErr
darran 0:ac21159e27f4 37 {
darran 0:ac21159e27f4 38 __NETTCPSOCKET_MIN = -0xFFFF,
darran 0:ac21159e27f4 39 NETTCPSOCKET_SETUP, //NetTcpSocket not properly configured
darran 0:ac21159e27f4 40 NETTCPSOCKET_TIMEOUT,
darran 0:ac21159e27f4 41 NETTCPSOCKET_IF, //If has problems
darran 0:ac21159e27f4 42 NETTCPSOCKET_MEM, //Not enough mem
darran 0:ac21159e27f4 43 NETTCPSOCKET_INUSE, //If/Port is in use
darran 0:ac21159e27f4 44 NETTCPSOCKET_EMPTY, //Connections queue is empty
darran 0:ac21159e27f4 45 NETTCPSOCKET_RST, // Connection was reset by remote host
darran 0:ac21159e27f4 46 //...
darran 0:ac21159e27f4 47 NETTCPSOCKET_OK = 0
darran 0:ac21159e27f4 48 };
darran 0:ac21159e27f4 49
darran 0:ac21159e27f4 50 enum NetTcpSocketEvent
darran 0:ac21159e27f4 51 {
darran 0:ac21159e27f4 52 NETTCPSOCKET_CONNECTED, //Connected to host, must call accept() if we were listening
darran 0:ac21159e27f4 53 NETTCPSOCKET_ACCEPT, //Connected to client
darran 0:ac21159e27f4 54 NETTCPSOCKET_READABLE, //Data in buf
darran 0:ac21159e27f4 55 NETTCPSOCKET_WRITEABLE, //Can write data to buf
darran 0:ac21159e27f4 56 NETTCPSOCKET_CONTIMEOUT,
darran 0:ac21159e27f4 57 NETTCPSOCKET_CONRST,
darran 0:ac21159e27f4 58 NETTCPSOCKET_CONABRT,
darran 0:ac21159e27f4 59 NETTCPSOCKET_ERROR,
darran 0:ac21159e27f4 60 NETTCPSOCKET_DISCONNECTED
darran 0:ac21159e27f4 61 };
darran 0:ac21159e27f4 62
darran 0:ac21159e27f4 63
darran 0:ac21159e27f4 64 class NetTcpSocket
darran 0:ac21159e27f4 65 {
darran 0:ac21159e27f4 66 public:
darran 0:ac21159e27f4 67 NetTcpSocket();
darran 0:ac21159e27f4 68 virtual ~NetTcpSocket(); //close()
darran 0:ac21159e27f4 69
darran 0:ac21159e27f4 70 virtual NetTcpSocketErr bind(const Host& me) = 0;
darran 0:ac21159e27f4 71 virtual NetTcpSocketErr listen() = 0;
darran 0:ac21159e27f4 72 virtual NetTcpSocketErr connect(const Host& host) = 0;
darran 0:ac21159e27f4 73 virtual NetTcpSocketErr accept(Host* pClient, NetTcpSocket** ppNewNetTcpSocket) = 0;
darran 0:ac21159e27f4 74
darran 0:ac21159e27f4 75 virtual int /*if < 0 : NetTcpSocketErr*/ send(const char* buf, int len) = 0;
darran 0:ac21159e27f4 76 virtual int /*if < 0 : NetTcpSocketErr*/ recv(char* buf, int len) = 0;
darran 0:ac21159e27f4 77
darran 0:ac21159e27f4 78 virtual NetTcpSocketErr close() = 0;
darran 0:ac21159e27f4 79
darran 0:ac21159e27f4 80 virtual NetTcpSocketErr poll() = 0;
darran 0:ac21159e27f4 81
darran 0:ac21159e27f4 82 class CDummy;
darran 0:ac21159e27f4 83 //Callbacks
darran 0:ac21159e27f4 84 template<class T>
darran 0:ac21159e27f4 85 //Linker bug : Must be defined here :(
darran 0:ac21159e27f4 86 void setOnEvent( T* pItem, void (T::*pMethod)(NetTcpSocketEvent) )
darran 0:ac21159e27f4 87 {
darran 0:ac21159e27f4 88 m_pCbItem = (CDummy*) pItem;
darran 0:ac21159e27f4 89 m_pCbMeth = (void (CDummy::*)(NetTcpSocketEvent)) pMethod;
darran 0:ac21159e27f4 90 }
darran 0:ac21159e27f4 91
darran 0:ac21159e27f4 92 void resetOnEvent(); //Disable callback
darran 0:ac21159e27f4 93
darran 0:ac21159e27f4 94 protected:
darran 0:ac21159e27f4 95 void queueEvent(NetTcpSocketEvent e);
darran 0:ac21159e27f4 96 void discardEvents();
darran 0:ac21159e27f4 97 void flushEvents(); //to be called during polling
darran 0:ac21159e27f4 98
darran 0:ac21159e27f4 99 Host m_host;
darran 0:ac21159e27f4 100 Host m_client;
darran 0:ac21159e27f4 101
darran 0:ac21159e27f4 102 friend class Net;
darran 0:ac21159e27f4 103 int m_refs;
darran 0:ac21159e27f4 104
darran 0:ac21159e27f4 105 bool m_closed;
darran 0:ac21159e27f4 106 bool m_removed;
darran 0:ac21159e27f4 107
darran 0:ac21159e27f4 108 private:
darran 0:ac21159e27f4 109 //We do not want to execute user code in interrupt routines, so we queue events until the server is polled
darran 0:ac21159e27f4 110 //If we port this to a multithreaded OS, we could avoid this (however some functions here are not thread-safe, so beware ;) )
darran 0:ac21159e27f4 111 void onEvent(NetTcpSocketEvent e); //To be called on poll
darran 0:ac21159e27f4 112 CDummy* m_pCbItem;
darran 0:ac21159e27f4 113 void (CDummy::*m_pCbMeth)(NetTcpSocketEvent);
darran 0:ac21159e27f4 114 queue<NetTcpSocketEvent> m_events;
darran 0:ac21159e27f4 115
darran 0:ac21159e27f4 116 };
darran 0:ac21159e27f4 117
darran 0:ac21159e27f4 118 #endif