Rahol Rajan / NetServices-Traffic

Used in Live Traffic Update Nokia LCD Display Project

Fork of NetServices by Segundo Equipo

if/net/netudpsocket.h@8:92b57208ab99, 2013-03-06 (annotated)

Committer:
rrajan8
Date:
Wed Mar 06 19:07:23 2013 +0000
Revision:
8:92b57208ab99
Parent:
0:ac1725ba162c 
This project utilizes mbed's networking features to display live traffic updates on the Nokia LCD using the MapQuest API's Traffic Web Service.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
segundo 0:ac1725ba162c 1
segundo 0:ac1725ba162c 2 /*
segundo 0:ac1725ba162c 3 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
segundo 0:ac1725ba162c 4
segundo 0:ac1725ba162c 5 Permission is hereby granted, free of charge, to any person obtaining a copy
segundo 0:ac1725ba162c 6 of this software and associated documentation files (the "Software"), to deal
segundo 0:ac1725ba162c 7 in the Software without restriction, including without limitation the rights
segundo 0:ac1725ba162c 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
segundo 0:ac1725ba162c 9 copies of the Software, and to permit persons to whom the Software is
segundo 0:ac1725ba162c 10 furnished to do so, subject to the following conditions:
segundo 0:ac1725ba162c 11
segundo 0:ac1725ba162c 12 The above copyright notice and this permission notice shall be included in
segundo 0:ac1725ba162c 13 all copies or substantial portions of the Software.
segundo 0:ac1725ba162c 14
segundo 0:ac1725ba162c 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
segundo 0:ac1725ba162c 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
segundo 0:ac1725ba162c 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
segundo 0:ac1725ba162c 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
segundo 0:ac1725ba162c 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
segundo 0:ac1725ba162c 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
segundo 0:ac1725ba162c 21 THE SOFTWARE.
segundo 0:ac1725ba162c 22 */
segundo 0:ac1725ba162c 23
segundo 0:ac1725ba162c 24 #ifndef NETUDPSOCKET_H
segundo 0:ac1725ba162c 25 #define NETUDPSOCKET_H
segundo 0:ac1725ba162c 26
segundo 0:ac1725ba162c 27 #include "net.h"
segundo 0:ac1725ba162c 28 #include "host.h"
segundo 0:ac1725ba162c 29
segundo 0:ac1725ba162c 30 #include <queue>
segundo 0:ac1725ba162c 31 using std::queue;
segundo 0:ac1725ba162c 32
segundo 0:ac1725ba162c 33 //Implements a Berkeley-like socket if
segundo 0:ac1725ba162c 34 //Can be interfaced either to lwip or a Telit module
segundo 0:ac1725ba162c 35
segundo 0:ac1725ba162c 36 enum NetUdpSocketErr
segundo 0:ac1725ba162c 37 {
segundo 0:ac1725ba162c 38 __NETUDPSOCKET_MIN = -0xFFFF,
segundo 0:ac1725ba162c 39 NETUDPSOCKET_SETUP, //NetUdpSocket not properly configured
segundo 0:ac1725ba162c 40 NETUDPSOCKET_IF, //If has problems
segundo 0:ac1725ba162c 41 NETUDPSOCKET_MEM, //Not enough mem
segundo 0:ac1725ba162c 42 NETUDPSOCKET_INUSE, //If/Port is in use
segundo 0:ac1725ba162c 43 //...
segundo 0:ac1725ba162c 44 NETUDPSOCKET_OK = 0
segundo 0:ac1725ba162c 45 };
segundo 0:ac1725ba162c 46
segundo 0:ac1725ba162c 47 enum NetUdpSocketEvent //Only one lonely event here... but who knows, maybe some day there'll be another one!
segundo 0:ac1725ba162c 48 {
segundo 0:ac1725ba162c 49 NETUDPSOCKET_READABLE, //Data in buf
segundo 0:ac1725ba162c 50 };
segundo 0:ac1725ba162c 51
segundo 0:ac1725ba162c 52
segundo 0:ac1725ba162c 53 class NetUdpSocket
segundo 0:ac1725ba162c 54 {
segundo 0:ac1725ba162c 55 public:
segundo 0:ac1725ba162c 56 NetUdpSocket();
segundo 0:ac1725ba162c 57 virtual ~NetUdpSocket(); //close()
segundo 0:ac1725ba162c 58
segundo 0:ac1725ba162c 59 virtual NetUdpSocketErr bind(const Host& me) = 0;
segundo 0:ac1725ba162c 60
segundo 0:ac1725ba162c 61 virtual int /*if < 0 : NetUdpSocketErr*/ sendto(const char* buf, int len, Host* pHost) = 0;
segundo 0:ac1725ba162c 62 virtual int /*if < 0 : NetUdpSocketErr*/ recvfrom(char* buf, int len, Host* pHost) = 0;
segundo 0:ac1725ba162c 63
segundo 0:ac1725ba162c 64 /* TODO NTH : printf / scanf helpers that call send/recv */
segundo 0:ac1725ba162c 65
segundo 0:ac1725ba162c 66 virtual NetUdpSocketErr close() = 0;
segundo 0:ac1725ba162c 67
segundo 0:ac1725ba162c 68 virtual NetUdpSocketErr poll() = 0;
segundo 0:ac1725ba162c 69
segundo 0:ac1725ba162c 70 class CDummy;
segundo 0:ac1725ba162c 71 //Callbacks
segundo 0:ac1725ba162c 72 template<class T>
segundo 0:ac1725ba162c 73 //Linker bug : Must be defined here :(
segundo 0:ac1725ba162c 74 void setOnEvent( T* pItem, void (T::*pMethod)(NetUdpSocketEvent) )
segundo 0:ac1725ba162c 75 {
segundo 0:ac1725ba162c 76 m_pCbItem = (CDummy*) pItem;
segundo 0:ac1725ba162c 77 m_pCbMeth = (void (CDummy::*)(NetUdpSocketEvent)) pMethod;
segundo 0:ac1725ba162c 78 }
segundo 0:ac1725ba162c 79
segundo 0:ac1725ba162c 80 void resetOnEvent(); //Disable callback
segundo 0:ac1725ba162c 81
segundo 0:ac1725ba162c 82 protected:
segundo 0:ac1725ba162c 83 void queueEvent(NetUdpSocketEvent e);
segundo 0:ac1725ba162c 84 void discardEvents();
segundo 0:ac1725ba162c 85 void flushEvents(); //to be called during polling
segundo 0:ac1725ba162c 86
segundo 0:ac1725ba162c 87 Host m_host;
segundo 0:ac1725ba162c 88 Host m_client;
segundo 0:ac1725ba162c 89
segundo 0:ac1725ba162c 90 friend class Net;
segundo 0:ac1725ba162c 91 int m_refs;
segundo 0:ac1725ba162c 92
segundo 0:ac1725ba162c 93 bool m_closed;
segundo 0:ac1725ba162c 94 bool m_removed;
segundo 0:ac1725ba162c 95
segundo 0:ac1725ba162c 96 private:
segundo 0:ac1725ba162c 97 //We do not want to execute user code in interrupt routines, so we queue events until the server is polled
segundo 0:ac1725ba162c 98 //If we port this to a multithreaded OS, we could avoid this (however some functions here are not thread-safe, so beware ;) )
segundo 0:ac1725ba162c 99 void onEvent(NetUdpSocketEvent e); //To be called on poll
segundo 0:ac1725ba162c 100 CDummy* m_pCbItem;
segundo 0:ac1725ba162c 101 void (CDummy::*m_pCbMeth)(NetUdpSocketEvent);
segundo 0:ac1725ba162c 102 queue<NetUdpSocketEvent> m_events;
segundo 0:ac1725ba162c 103
segundo 0:ac1725ba162c 104 };
segundo 0:ac1725ba162c 105
segundo 0:ac1725ba162c 106 #endif