SNMP agent attached to SPI slave

Dependencies:   mbed

Committer:
lorcansmith
Date:
Mon Aug 13 15:07:40 2012 +0000
Revision:
0:2a53a4c3238c
v1.1 release includes ioAlarm traps

Who changed what in which revision?

UserRevisionLine numberNew contents of line
lorcansmith 0:2a53a4c3238c 1
lorcansmith 0:2a53a4c3238c 2 /*
lorcansmith 0:2a53a4c3238c 3 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
lorcansmith 0:2a53a4c3238c 4
lorcansmith 0:2a53a4c3238c 5 Permission is hereby granted, free of charge, to any person obtaining a copy
lorcansmith 0:2a53a4c3238c 6 of this software and associated documentation files (the "Software"), to deal
lorcansmith 0:2a53a4c3238c 7 in the Software without restriction, including without limitation the rights
lorcansmith 0:2a53a4c3238c 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
lorcansmith 0:2a53a4c3238c 9 copies of the Software, and to permit persons to whom the Software is
lorcansmith 0:2a53a4c3238c 10 furnished to do so, subject to the following conditions:
lorcansmith 0:2a53a4c3238c 11
lorcansmith 0:2a53a4c3238c 12 The above copyright notice and this permission notice shall be included in
lorcansmith 0:2a53a4c3238c 13 all copies or substantial portions of the Software.
lorcansmith 0:2a53a4c3238c 14
lorcansmith 0:2a53a4c3238c 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
lorcansmith 0:2a53a4c3238c 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
lorcansmith 0:2a53a4c3238c 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
lorcansmith 0:2a53a4c3238c 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
lorcansmith 0:2a53a4c3238c 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
lorcansmith 0:2a53a4c3238c 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
lorcansmith 0:2a53a4c3238c 21 THE SOFTWARE.
lorcansmith 0:2a53a4c3238c 22 */
lorcansmith 0:2a53a4c3238c 23
lorcansmith 0:2a53a4c3238c 24 #ifndef NETTCPSOCKET_H
lorcansmith 0:2a53a4c3238c 25 #define NETTCPSOCKET_H
lorcansmith 0:2a53a4c3238c 26
lorcansmith 0:2a53a4c3238c 27 #include "net.h"
lorcansmith 0:2a53a4c3238c 28 #include "host.h"
lorcansmith 0:2a53a4c3238c 29
lorcansmith 0:2a53a4c3238c 30 #include <queue>
lorcansmith 0:2a53a4c3238c 31 using std::queue;
lorcansmith 0:2a53a4c3238c 32
lorcansmith 0:2a53a4c3238c 33 //Implements a Berkeley-like socket if
lorcansmith 0:2a53a4c3238c 34 //Can be interfaced either to lwip or a Telit module
lorcansmith 0:2a53a4c3238c 35
lorcansmith 0:2a53a4c3238c 36 enum NetTcpSocketErr
lorcansmith 0:2a53a4c3238c 37 {
lorcansmith 0:2a53a4c3238c 38 __NETTCPSOCKET_MIN = -0xFFFF,
lorcansmith 0:2a53a4c3238c 39 NETTCPSOCKET_SETUP, //NetTcpSocket not properly configured
lorcansmith 0:2a53a4c3238c 40 NETTCPSOCKET_TIMEOUT,
lorcansmith 0:2a53a4c3238c 41 NETTCPSOCKET_IF, //If has problems
lorcansmith 0:2a53a4c3238c 42 NETTCPSOCKET_MEM, //Not enough mem
lorcansmith 0:2a53a4c3238c 43 NETTCPSOCKET_INUSE, //If/Port is in use
lorcansmith 0:2a53a4c3238c 44 NETTCPSOCKET_EMPTY, //Connections queue is empty
lorcansmith 0:2a53a4c3238c 45 NETTCPSOCKET_RST, // Connection was reset by remote host
lorcansmith 0:2a53a4c3238c 46 //...
lorcansmith 0:2a53a4c3238c 47 NETTCPSOCKET_OK = 0
lorcansmith 0:2a53a4c3238c 48 };
lorcansmith 0:2a53a4c3238c 49
lorcansmith 0:2a53a4c3238c 50 enum NetTcpSocketEvent
lorcansmith 0:2a53a4c3238c 51 {
lorcansmith 0:2a53a4c3238c 52 NETTCPSOCKET_CONNECTED, //Connected to host, must call accept() if we were listening
lorcansmith 0:2a53a4c3238c 53 NETTCPSOCKET_ACCEPT, //Connected to client
lorcansmith 0:2a53a4c3238c 54 NETTCPSOCKET_READABLE, //Data in buf
lorcansmith 0:2a53a4c3238c 55 NETTCPSOCKET_WRITEABLE, //Can write data to buf
lorcansmith 0:2a53a4c3238c 56 NETTCPSOCKET_CONTIMEOUT,
lorcansmith 0:2a53a4c3238c 57 NETTCPSOCKET_CONRST,
lorcansmith 0:2a53a4c3238c 58 NETTCPSOCKET_CONABRT,
lorcansmith 0:2a53a4c3238c 59 NETTCPSOCKET_ERROR,
lorcansmith 0:2a53a4c3238c 60 NETTCPSOCKET_DISCONNECTED
lorcansmith 0:2a53a4c3238c 61 };
lorcansmith 0:2a53a4c3238c 62
lorcansmith 0:2a53a4c3238c 63
lorcansmith 0:2a53a4c3238c 64 class NetTcpSocket
lorcansmith 0:2a53a4c3238c 65 {
lorcansmith 0:2a53a4c3238c 66 public:
lorcansmith 0:2a53a4c3238c 67 NetTcpSocket();
lorcansmith 0:2a53a4c3238c 68 virtual ~NetTcpSocket(); //close()
lorcansmith 0:2a53a4c3238c 69
lorcansmith 0:2a53a4c3238c 70 virtual NetTcpSocketErr bind(const Host& me) = 0;
lorcansmith 0:2a53a4c3238c 71 virtual NetTcpSocketErr listen() = 0;
lorcansmith 0:2a53a4c3238c 72 virtual NetTcpSocketErr connect(const Host& host) = 0;
lorcansmith 0:2a53a4c3238c 73 virtual NetTcpSocketErr accept(Host* pClient, NetTcpSocket** ppNewNetTcpSocket) = 0;
lorcansmith 0:2a53a4c3238c 74
lorcansmith 0:2a53a4c3238c 75 virtual int /*if < 0 : NetTcpSocketErr*/ send(const char* buf, int len) = 0;
lorcansmith 0:2a53a4c3238c 76 virtual int /*if < 0 : NetTcpSocketErr*/ recv(char* buf, int len) = 0;
lorcansmith 0:2a53a4c3238c 77
lorcansmith 0:2a53a4c3238c 78 virtual NetTcpSocketErr close() = 0;
lorcansmith 0:2a53a4c3238c 79
lorcansmith 0:2a53a4c3238c 80 virtual NetTcpSocketErr poll() = 0;
lorcansmith 0:2a53a4c3238c 81
lorcansmith 0:2a53a4c3238c 82 class CDummy;
lorcansmith 0:2a53a4c3238c 83 //Callbacks
lorcansmith 0:2a53a4c3238c 84 template<class T>
lorcansmith 0:2a53a4c3238c 85 //Linker bug : Must be defined here :(
lorcansmith 0:2a53a4c3238c 86 void setOnEvent( T* pItem, void (T::*pMethod)(NetTcpSocketEvent) )
lorcansmith 0:2a53a4c3238c 87 {
lorcansmith 0:2a53a4c3238c 88 m_pCbItem = (CDummy*) pItem;
lorcansmith 0:2a53a4c3238c 89 m_pCbMeth = (void (CDummy::*)(NetTcpSocketEvent)) pMethod;
lorcansmith 0:2a53a4c3238c 90 }
lorcansmith 0:2a53a4c3238c 91
lorcansmith 0:2a53a4c3238c 92 void resetOnEvent(); //Disable callback
lorcansmith 0:2a53a4c3238c 93
lorcansmith 0:2a53a4c3238c 94 protected:
lorcansmith 0:2a53a4c3238c 95 void queueEvent(NetTcpSocketEvent e);
lorcansmith 0:2a53a4c3238c 96 void discardEvents();
lorcansmith 0:2a53a4c3238c 97 void flushEvents(); //to be called during polling
lorcansmith 0:2a53a4c3238c 98
lorcansmith 0:2a53a4c3238c 99 Host m_host;
lorcansmith 0:2a53a4c3238c 100 Host m_client;
lorcansmith 0:2a53a4c3238c 101
lorcansmith 0:2a53a4c3238c 102 friend class Net;
lorcansmith 0:2a53a4c3238c 103 int m_refs;
lorcansmith 0:2a53a4c3238c 104
lorcansmith 0:2a53a4c3238c 105 bool m_closed;
lorcansmith 0:2a53a4c3238c 106 bool m_removed;
lorcansmith 0:2a53a4c3238c 107
lorcansmith 0:2a53a4c3238c 108 private:
lorcansmith 0:2a53a4c3238c 109 //We do not want to execute user code in interrupt routines, so we queue events until the server is polled
lorcansmith 0:2a53a4c3238c 110 //If we port this to a multithreaded OS, we could avoid this (however some functions here are not thread-safe, so beware ;) )
lorcansmith 0:2a53a4c3238c 111 void onEvent(NetTcpSocketEvent e); //To be called on poll
lorcansmith 0:2a53a4c3238c 112 CDummy* m_pCbItem;
lorcansmith 0:2a53a4c3238c 113 void (CDummy::*m_pCbMeth)(NetTcpSocketEvent);
lorcansmith 0:2a53a4c3238c 114 queue<NetTcpSocketEvent> m_events;
lorcansmith 0:2a53a4c3238c 115
lorcansmith 0:2a53a4c3238c 116 };
lorcansmith 0:2a53a4c3238c 117
lorcansmith 0:2a53a4c3238c 118 #endif