Pranav Sawant / EthernetNetIf

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

Dependents:   Lab3_VoiceMeter

Fork of EthernetNetIf by Donatien Garnier

LPC1768/if/net/netudpsocket.h@6:22ce63eddd2b, 2012-10-12 (annotated)

Committer:
psawant9
Date:
Fri Oct 12 16:02:00 2012 +0000
Revision:
6:22ce63eddd2b
Parent:
0:422060928e37 
Done

Who changed what in which revision?

UserRevisionLine numberNew contents of line
psawant9 6:22ce63eddd2b 1
psawant9 6:22ce63eddd2b 2 /*
psawant9 6:22ce63eddd2b 3 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
psawant9 6:22ce63eddd2b 4
psawant9 6:22ce63eddd2b 5 Permission is hereby granted, free of charge, to any person obtaining a copy
psawant9 6:22ce63eddd2b 6 of this software and associated documentation files (the "Software"), to deal
psawant9 6:22ce63eddd2b 7 in the Software without restriction, including without limitation the rights
psawant9 6:22ce63eddd2b 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
psawant9 6:22ce63eddd2b 9 copies of the Software, and to permit persons to whom the Software is
psawant9 6:22ce63eddd2b 10 furnished to do so, subject to the following conditions:
psawant9 6:22ce63eddd2b 11
psawant9 6:22ce63eddd2b 12 The above copyright notice and this permission notice shall be included in
psawant9 6:22ce63eddd2b 13 all copies or substantial portions of the Software.
psawant9 6:22ce63eddd2b 14
psawant9 6:22ce63eddd2b 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
psawant9 6:22ce63eddd2b 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
psawant9 6:22ce63eddd2b 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
psawant9 6:22ce63eddd2b 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
psawant9 6:22ce63eddd2b 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
psawant9 6:22ce63eddd2b 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
psawant9 6:22ce63eddd2b 21 THE SOFTWARE.
psawant9 6:22ce63eddd2b 22 */
psawant9 6:22ce63eddd2b 23
psawant9 6:22ce63eddd2b 24 #ifndef NETUDPSOCKET_H
psawant9 6:22ce63eddd2b 25 #define NETUDPSOCKET_H
psawant9 6:22ce63eddd2b 26
psawant9 6:22ce63eddd2b 27 #include "net.h"
psawant9 6:22ce63eddd2b 28 #include "host.h"
psawant9 6:22ce63eddd2b 29
psawant9 6:22ce63eddd2b 30 #include <queue>
psawant9 6:22ce63eddd2b 31 using std::queue;
psawant9 6:22ce63eddd2b 32
psawant9 6:22ce63eddd2b 33 //Implements a Berkeley-like socket if
psawant9 6:22ce63eddd2b 34 //Can be interfaced either to lwip or a Telit module
psawant9 6:22ce63eddd2b 35
psawant9 6:22ce63eddd2b 36 enum NetUdpSocketErr
psawant9 6:22ce63eddd2b 37 {
psawant9 6:22ce63eddd2b 38 __NETUDPSOCKET_MIN = -0xFFFF,
psawant9 6:22ce63eddd2b 39 NETUDPSOCKET_SETUP, //NetUdpSocket not properly configured
psawant9 6:22ce63eddd2b 40 NETUDPSOCKET_IF, //If has problems
psawant9 6:22ce63eddd2b 41 NETUDPSOCKET_MEM, //Not enough mem
psawant9 6:22ce63eddd2b 42 NETUDPSOCKET_INUSE, //If/Port is in use
psawant9 6:22ce63eddd2b 43 //...
psawant9 6:22ce63eddd2b 44 NETUDPSOCKET_OK = 0
psawant9 6:22ce63eddd2b 45 };
psawant9 6:22ce63eddd2b 46
psawant9 6:22ce63eddd2b 47 enum NetUdpSocketEvent //Only one lonely event here... but who knows, maybe some day there'll be another one!
psawant9 6:22ce63eddd2b 48 {
psawant9 6:22ce63eddd2b 49 NETUDPSOCKET_READABLE, //Data in buf
psawant9 6:22ce63eddd2b 50 };
psawant9 6:22ce63eddd2b 51
psawant9 6:22ce63eddd2b 52
psawant9 6:22ce63eddd2b 53 class NetUdpSocket
psawant9 6:22ce63eddd2b 54 {
psawant9 6:22ce63eddd2b 55 public:
psawant9 6:22ce63eddd2b 56 NetUdpSocket();
psawant9 6:22ce63eddd2b 57 virtual ~NetUdpSocket(); //close()
psawant9 6:22ce63eddd2b 58
psawant9 6:22ce63eddd2b 59 virtual NetUdpSocketErr bind(const Host& me) = 0;
psawant9 6:22ce63eddd2b 60
psawant9 6:22ce63eddd2b 61 virtual int /*if < 0 : NetUdpSocketErr*/ sendto(const char* buf, int len, Host* pHost) = 0;
psawant9 6:22ce63eddd2b 62 virtual int /*if < 0 : NetUdpSocketErr*/ recvfrom(char* buf, int len, Host* pHost) = 0;
psawant9 6:22ce63eddd2b 63
psawant9 6:22ce63eddd2b 64 /* TODO NTH : printf / scanf helpers that call send/recv */
psawant9 6:22ce63eddd2b 65
psawant9 6:22ce63eddd2b 66 virtual NetUdpSocketErr close() = 0;
psawant9 6:22ce63eddd2b 67
psawant9 6:22ce63eddd2b 68 virtual NetUdpSocketErr poll() = 0;
psawant9 6:22ce63eddd2b 69
psawant9 6:22ce63eddd2b 70 class CDummy;
psawant9 6:22ce63eddd2b 71 //Callbacks
psawant9 6:22ce63eddd2b 72 template<class T>
psawant9 6:22ce63eddd2b 73 //Linker bug : Must be defined here :(
psawant9 6:22ce63eddd2b 74 void setOnEvent( T* pItem, void (T::*pMethod)(NetUdpSocketEvent) )
psawant9 6:22ce63eddd2b 75 {
psawant9 6:22ce63eddd2b 76 m_pCbItem = (CDummy*) pItem;
psawant9 6:22ce63eddd2b 77 m_pCbMeth = (void (CDummy::*)(NetUdpSocketEvent)) pMethod;
psawant9 6:22ce63eddd2b 78 }
psawant9 6:22ce63eddd2b 79
psawant9 6:22ce63eddd2b 80 void resetOnEvent(); //Disable callback
psawant9 6:22ce63eddd2b 81
psawant9 6:22ce63eddd2b 82 protected:
psawant9 6:22ce63eddd2b 83 void queueEvent(NetUdpSocketEvent e);
psawant9 6:22ce63eddd2b 84 void discardEvents();
psawant9 6:22ce63eddd2b 85 void flushEvents(); //to be called during polling
psawant9 6:22ce63eddd2b 86
psawant9 6:22ce63eddd2b 87 Host m_host;
psawant9 6:22ce63eddd2b 88 Host m_client;
psawant9 6:22ce63eddd2b 89
psawant9 6:22ce63eddd2b 90 friend class Net;
psawant9 6:22ce63eddd2b 91 int m_refs;
psawant9 6:22ce63eddd2b 92
psawant9 6:22ce63eddd2b 93 bool m_closed;
psawant9 6:22ce63eddd2b 94 bool m_removed;
psawant9 6:22ce63eddd2b 95
psawant9 6:22ce63eddd2b 96 private:
psawant9 6:22ce63eddd2b 97 //We do not want to execute user code in interrupt routines, so we queue events until the server is polled
psawant9 6:22ce63eddd2b 98 //If we port this to a multithreaded OS, we could avoid this (however some functions here are not thread-safe, so beware ;) )
psawant9 6:22ce63eddd2b 99 void onEvent(NetUdpSocketEvent e); //To be called on poll
psawant9 6:22ce63eddd2b 100 CDummy* m_pCbItem;
psawant9 6:22ce63eddd2b 101 void (CDummy::*m_pCbMeth)(NetUdpSocketEvent);
psawant9 6:22ce63eddd2b 102 queue<NetUdpSocketEvent> m_events;
psawant9 6:22ce63eddd2b 103
psawant9 6:22ce63eddd2b 104 };
psawant9 6:22ce63eddd2b 105
psawant9 6:22ce63eddd2b 106 #endif