Graham Cantin / EthernetNetIf

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Fork of EthernetNetIf by Donatien Garnier

LPC2368/if/net/netudpsocket.h@6:93d28f6f1dc8, 2014-11-06 (annotated)

Committer:
kamilion
Date:
Thu Nov 06 01:56:01 2014 +0000
Revision:
6:93d28f6f1dc8
Parent:
0:422060928e37 
trying to make repo public

Who changed what in which revision?

UserRevisionLine numberNew contents of line
donatien 0:422060928e37 1
donatien 0:422060928e37 2 /*
donatien 0:422060928e37 3 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
donatien 0:422060928e37 4
donatien 0:422060928e37 5 Permission is hereby granted, free of charge, to any person obtaining a copy
donatien 0:422060928e37 6 of this software and associated documentation files (the "Software"), to deal
donatien 0:422060928e37 7 in the Software without restriction, including without limitation the rights
donatien 0:422060928e37 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
donatien 0:422060928e37 9 copies of the Software, and to permit persons to whom the Software is
donatien 0:422060928e37 10 furnished to do so, subject to the following conditions:
donatien 0:422060928e37 11
donatien 0:422060928e37 12 The above copyright notice and this permission notice shall be included in
donatien 0:422060928e37 13 all copies or substantial portions of the Software.
donatien 0:422060928e37 14
donatien 0:422060928e37 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
donatien 0:422060928e37 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
donatien 0:422060928e37 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
donatien 0:422060928e37 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
donatien 0:422060928e37 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
donatien 0:422060928e37 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
donatien 0:422060928e37 21 THE SOFTWARE.
donatien 0:422060928e37 22 */
donatien 0:422060928e37 23
donatien 0:422060928e37 24 #ifndef NETUDPSOCKET_H
donatien 0:422060928e37 25 #define NETUDPSOCKET_H
donatien 0:422060928e37 26
donatien 0:422060928e37 27 #include "net.h"
donatien 0:422060928e37 28 #include "host.h"
donatien 0:422060928e37 29
donatien 0:422060928e37 30 #include <queue>
donatien 0:422060928e37 31 using std::queue;
donatien 0:422060928e37 32
donatien 0:422060928e37 33 //Implements a Berkeley-like socket if
donatien 0:422060928e37 34 //Can be interfaced either to lwip or a Telit module
donatien 0:422060928e37 35
donatien 0:422060928e37 36 enum NetUdpSocketErr
donatien 0:422060928e37 37 {
donatien 0:422060928e37 38 __NETUDPSOCKET_MIN = -0xFFFF,
donatien 0:422060928e37 39 NETUDPSOCKET_SETUP, //NetUdpSocket not properly configured
donatien 0:422060928e37 40 NETUDPSOCKET_IF, //If has problems
donatien 0:422060928e37 41 NETUDPSOCKET_MEM, //Not enough mem
donatien 0:422060928e37 42 NETUDPSOCKET_INUSE, //If/Port is in use
donatien 0:422060928e37 43 //...
donatien 0:422060928e37 44 NETUDPSOCKET_OK = 0
donatien 0:422060928e37 45 };
donatien 0:422060928e37 46
donatien 0:422060928e37 47 enum NetUdpSocketEvent //Only one lonely event here... but who knows, maybe some day there'll be another one!
donatien 0:422060928e37 48 {
donatien 0:422060928e37 49 NETUDPSOCKET_READABLE, //Data in buf
donatien 0:422060928e37 50 };
donatien 0:422060928e37 51
donatien 0:422060928e37 52
donatien 0:422060928e37 53 class NetUdpSocket
donatien 0:422060928e37 54 {
donatien 0:422060928e37 55 public:
donatien 0:422060928e37 56 NetUdpSocket();
donatien 0:422060928e37 57 virtual ~NetUdpSocket(); //close()
donatien 0:422060928e37 58
donatien 0:422060928e37 59 virtual NetUdpSocketErr bind(const Host& me) = 0;
donatien 0:422060928e37 60
donatien 0:422060928e37 61 virtual int /*if < 0 : NetUdpSocketErr*/ sendto(const char* buf, int len, Host* pHost) = 0;
donatien 0:422060928e37 62 virtual int /*if < 0 : NetUdpSocketErr*/ recvfrom(char* buf, int len, Host* pHost) = 0;
donatien 0:422060928e37 63
donatien 0:422060928e37 64 /* TODO NTH : printf / scanf helpers that call send/recv */
donatien 0:422060928e37 65
donatien 0:422060928e37 66 virtual NetUdpSocketErr close() = 0;
donatien 0:422060928e37 67
donatien 0:422060928e37 68 virtual NetUdpSocketErr poll() = 0;
donatien 0:422060928e37 69
donatien 0:422060928e37 70 class CDummy;
donatien 0:422060928e37 71 //Callbacks
donatien 0:422060928e37 72 template<class T>
donatien 0:422060928e37 73 //Linker bug : Must be defined here :(
donatien 0:422060928e37 74 void setOnEvent( T* pItem, void (T::*pMethod)(NetUdpSocketEvent) )
donatien 0:422060928e37 75 {
donatien 0:422060928e37 76 m_pCbItem = (CDummy*) pItem;
donatien 0:422060928e37 77 m_pCbMeth = (void (CDummy::*)(NetUdpSocketEvent)) pMethod;
donatien 0:422060928e37 78 }
donatien 0:422060928e37 79
donatien 0:422060928e37 80 void resetOnEvent(); //Disable callback
donatien 0:422060928e37 81
donatien 0:422060928e37 82 protected:
donatien 0:422060928e37 83 void queueEvent(NetUdpSocketEvent e);
donatien 0:422060928e37 84 void discardEvents();
donatien 0:422060928e37 85 void flushEvents(); //to be called during polling
donatien 0:422060928e37 86
donatien 0:422060928e37 87 Host m_host;
donatien 0:422060928e37 88 Host m_client;
donatien 0:422060928e37 89
donatien 0:422060928e37 90 friend class Net;
donatien 0:422060928e37 91 int m_refs;
donatien 0:422060928e37 92
donatien 0:422060928e37 93 bool m_closed;
donatien 0:422060928e37 94 bool m_removed;
donatien 0:422060928e37 95
donatien 0:422060928e37 96 private:
donatien 0:422060928e37 97 //We do not want to execute user code in interrupt routines, so we queue events until the server is polled
donatien 0:422060928e37 98 //If we port this to a multithreaded OS, we could avoid this (however some functions here are not thread-safe, so beware ;) )
donatien 0:422060928e37 99 void onEvent(NetUdpSocketEvent e); //To be called on poll
donatien 0:422060928e37 100 CDummy* m_pCbItem;
donatien 0:422060928e37 101 void (CDummy::*m_pCbMeth)(NetUdpSocketEvent);
donatien 0:422060928e37 102 queue<NetUdpSocketEvent> m_events;
donatien 0:422060928e37 103
donatien 0:422060928e37 104 };
donatien 0:422060928e37 105
donatien 0:422060928e37 106 #endif