Simon Ford / NetServices

Version of http://mbed.org/cookbook/NetServicesTribute with setting set the same for LPC2368

Dependents:   UDPSocketExample 24LCxx_I2CApp WeatherPlatform_pachube HvZServerLib ... more

if/net/netudpsocket.h@0:350011bf8be7, 2010-11-23 (annotated)

Committer:
simon
Date:
Tue Nov 23 14:15:36 2010 +0000
Revision:
0:350011bf8be7
Experimental version for testing UDP

Who changed what in which revision?

UserRevisionLine numberNew contents of line
simon 0:350011bf8be7 1
simon 0:350011bf8be7 2 /*
simon 0:350011bf8be7 3 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
simon 0:350011bf8be7 4
simon 0:350011bf8be7 5 Permission is hereby granted, free of charge, to any person obtaining a copy
simon 0:350011bf8be7 6 of this software and associated documentation files (the "Software"), to deal
simon 0:350011bf8be7 7 in the Software without restriction, including without limitation the rights
simon 0:350011bf8be7 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
simon 0:350011bf8be7 9 copies of the Software, and to permit persons to whom the Software is
simon 0:350011bf8be7 10 furnished to do so, subject to the following conditions:
simon 0:350011bf8be7 11
simon 0:350011bf8be7 12 The above copyright notice and this permission notice shall be included in
simon 0:350011bf8be7 13 all copies or substantial portions of the Software.
simon 0:350011bf8be7 14
simon 0:350011bf8be7 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
simon 0:350011bf8be7 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
simon 0:350011bf8be7 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
simon 0:350011bf8be7 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
simon 0:350011bf8be7 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
simon 0:350011bf8be7 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
simon 0:350011bf8be7 21 THE SOFTWARE.
simon 0:350011bf8be7 22 */
simon 0:350011bf8be7 23
simon 0:350011bf8be7 24 #ifndef NETUDPSOCKET_H
simon 0:350011bf8be7 25 #define NETUDPSOCKET_H
simon 0:350011bf8be7 26
simon 0:350011bf8be7 27 #include "net.h"
simon 0:350011bf8be7 28 #include "host.h"
simon 0:350011bf8be7 29
simon 0:350011bf8be7 30 #include <queue>
simon 0:350011bf8be7 31 using std::queue;
simon 0:350011bf8be7 32
simon 0:350011bf8be7 33 //Implements a Berkeley-like socket if
simon 0:350011bf8be7 34 //Can be interfaced either to lwip or a Telit module
simon 0:350011bf8be7 35
simon 0:350011bf8be7 36 enum NetUdpSocketErr
simon 0:350011bf8be7 37 {
simon 0:350011bf8be7 38 __NETUDPSOCKET_MIN = -0xFFFF,
simon 0:350011bf8be7 39 NETUDPSOCKET_SETUP, //NetUdpSocket not properly configured
simon 0:350011bf8be7 40 NETUDPSOCKET_IF, //If has problems
simon 0:350011bf8be7 41 NETUDPSOCKET_MEM, //Not enough mem
simon 0:350011bf8be7 42 NETUDPSOCKET_INUSE, //If/Port is in use
simon 0:350011bf8be7 43 //...
simon 0:350011bf8be7 44 NETUDPSOCKET_OK = 0
simon 0:350011bf8be7 45 };
simon 0:350011bf8be7 46
simon 0:350011bf8be7 47 enum NetUdpSocketEvent //Only one lonely event here... but who knows, maybe some day there'll be another one!
simon 0:350011bf8be7 48 {
simon 0:350011bf8be7 49 NETUDPSOCKET_READABLE, //Data in buf
simon 0:350011bf8be7 50 };
simon 0:350011bf8be7 51
simon 0:350011bf8be7 52
simon 0:350011bf8be7 53 class NetUdpSocket
simon 0:350011bf8be7 54 {
simon 0:350011bf8be7 55 public:
simon 0:350011bf8be7 56 NetUdpSocket();
simon 0:350011bf8be7 57 virtual ~NetUdpSocket(); //close()
simon 0:350011bf8be7 58
simon 0:350011bf8be7 59 virtual NetUdpSocketErr bind(const Host& me) = 0;
simon 0:350011bf8be7 60
simon 0:350011bf8be7 61 virtual int /*if < 0 : NetUdpSocketErr*/ sendto(const char* buf, int len, Host* pHost) = 0;
simon 0:350011bf8be7 62 virtual int /*if < 0 : NetUdpSocketErr*/ recvfrom(char* buf, int len, Host* pHost) = 0;
simon 0:350011bf8be7 63
simon 0:350011bf8be7 64 /* TODO NTH : printf / scanf helpers that call send/recv */
simon 0:350011bf8be7 65
simon 0:350011bf8be7 66 virtual NetUdpSocketErr close() = 0;
simon 0:350011bf8be7 67
simon 0:350011bf8be7 68 virtual NetUdpSocketErr poll() = 0;
simon 0:350011bf8be7 69
simon 0:350011bf8be7 70 class CDummy;
simon 0:350011bf8be7 71 //Callbacks
simon 0:350011bf8be7 72 template<class T>
simon 0:350011bf8be7 73 //Linker bug : Must be defined here :(
simon 0:350011bf8be7 74 void setOnEvent( T* pItem, void (T::*pMethod)(NetUdpSocketEvent) )
simon 0:350011bf8be7 75 {
simon 0:350011bf8be7 76 m_pCbItem = (CDummy*) pItem;
simon 0:350011bf8be7 77 m_pCbMeth = (void (CDummy::*)(NetUdpSocketEvent)) pMethod;
simon 0:350011bf8be7 78 }
simon 0:350011bf8be7 79
simon 0:350011bf8be7 80 void resetOnEvent(); //Disable callback
simon 0:350011bf8be7 81
simon 0:350011bf8be7 82 protected:
simon 0:350011bf8be7 83 void queueEvent(NetUdpSocketEvent e);
simon 0:350011bf8be7 84 void discardEvents();
simon 0:350011bf8be7 85 void flushEvents(); //to be called during polling
simon 0:350011bf8be7 86
simon 0:350011bf8be7 87 Host m_host;
simon 0:350011bf8be7 88 Host m_client;
simon 0:350011bf8be7 89
simon 0:350011bf8be7 90 friend class Net;
simon 0:350011bf8be7 91 int m_refs;
simon 0:350011bf8be7 92
simon 0:350011bf8be7 93 bool m_closed;
simon 0:350011bf8be7 94 bool m_removed;
simon 0:350011bf8be7 95
simon 0:350011bf8be7 96 private:
simon 0:350011bf8be7 97 //We do not want to execute user code in interrupt routines, so we queue events until the server is polled
simon 0:350011bf8be7 98 //If we port this to a multithreaded OS, we could avoid this (however some functions here are not thread-safe, so beware ;) )
simon 0:350011bf8be7 99 void onEvent(NetUdpSocketEvent e); //To be called on poll
simon 0:350011bf8be7 100 CDummy* m_pCbItem;
simon 0:350011bf8be7 101 void (CDummy::*m_pCbMeth)(NetUdpSocketEvent);
simon 0:350011bf8be7 102 queue<NetUdpSocketEvent> m_events;
simon 0:350011bf8be7 103
simon 0:350011bf8be7 104 };
simon 0:350011bf8be7 105
simon 0:350011bf8be7 106 #endif