S K UCI / NetServicesMin

Fork of NetServicesMin with some warnings removed

Dependencies:   lwip-sys lwip

Fork of NetServicesMin by Hendrik Lipka

if/net/netudpsocket.h@4:c8b2f969c8dd, 2012-11-24 (annotated)

Committer:
uci1
Date:
Sat Nov 24 20:20:45 2012 +0000
Revision:
4:c8b2f969c8dd
Parent:
0:8b387bed54c2 
Remove debugging printouts

Who changed what in which revision?

UserRevisionLine numberNew contents of line
hlipka 0:8b387bed54c2 1
hlipka 0:8b387bed54c2 2 /*
hlipka 0:8b387bed54c2 3 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
hlipka 0:8b387bed54c2 4
hlipka 0:8b387bed54c2 5 Permission is hereby granted, free of charge, to any person obtaining a copy
hlipka 0:8b387bed54c2 6 of this software and associated documentation files (the "Software"), to deal
hlipka 0:8b387bed54c2 7 in the Software without restriction, including without limitation the rights
hlipka 0:8b387bed54c2 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
hlipka 0:8b387bed54c2 9 copies of the Software, and to permit persons to whom the Software is
hlipka 0:8b387bed54c2 10 furnished to do so, subject to the following conditions:
hlipka 0:8b387bed54c2 11
hlipka 0:8b387bed54c2 12 The above copyright notice and this permission notice shall be included in
hlipka 0:8b387bed54c2 13 all copies or substantial portions of the Software.
hlipka 0:8b387bed54c2 14
hlipka 0:8b387bed54c2 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
hlipka 0:8b387bed54c2 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
hlipka 0:8b387bed54c2 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
hlipka 0:8b387bed54c2 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
hlipka 0:8b387bed54c2 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
hlipka 0:8b387bed54c2 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
hlipka 0:8b387bed54c2 21 THE SOFTWARE.
hlipka 0:8b387bed54c2 22 */
hlipka 0:8b387bed54c2 23
hlipka 0:8b387bed54c2 24 #ifndef NETUDPSOCKET_H
hlipka 0:8b387bed54c2 25 #define NETUDPSOCKET_H
hlipka 0:8b387bed54c2 26
hlipka 0:8b387bed54c2 27 #include "net.h"
hlipka 0:8b387bed54c2 28 #include "host.h"
hlipka 0:8b387bed54c2 29
hlipka 0:8b387bed54c2 30 #include <queue>
hlipka 0:8b387bed54c2 31 using std::queue;
hlipka 0:8b387bed54c2 32
hlipka 0:8b387bed54c2 33 //Implements a Berkeley-like socket if
hlipka 0:8b387bed54c2 34 //Can be interfaced either to lwip or a Telit module
hlipka 0:8b387bed54c2 35
hlipka 0:8b387bed54c2 36 enum NetUdpSocketErr
hlipka 0:8b387bed54c2 37 {
hlipka 0:8b387bed54c2 38 __NETUDPSOCKET_MIN = -0xFFFF,
hlipka 0:8b387bed54c2 39 NETUDPSOCKET_SETUP, //NetUdpSocket not properly configured
hlipka 0:8b387bed54c2 40 NETUDPSOCKET_IF, //If has problems
hlipka 0:8b387bed54c2 41 NETUDPSOCKET_MEM, //Not enough mem
hlipka 0:8b387bed54c2 42 NETUDPSOCKET_INUSE, //If/Port is in use
hlipka 0:8b387bed54c2 43 //...
hlipka 0:8b387bed54c2 44 NETUDPSOCKET_OK = 0
hlipka 0:8b387bed54c2 45 };
hlipka 0:8b387bed54c2 46
hlipka 0:8b387bed54c2 47 enum NetUdpSocketEvent //Only one lonely event here... but who knows, maybe some day there'll be another one!
hlipka 0:8b387bed54c2 48 {
hlipka 0:8b387bed54c2 49 NETUDPSOCKET_READABLE, //Data in buf
hlipka 0:8b387bed54c2 50 };
hlipka 0:8b387bed54c2 51
hlipka 0:8b387bed54c2 52
hlipka 0:8b387bed54c2 53 class NetUdpSocket
hlipka 0:8b387bed54c2 54 {
hlipka 0:8b387bed54c2 55 public:
hlipka 0:8b387bed54c2 56 NetUdpSocket();
hlipka 0:8b387bed54c2 57 virtual ~NetUdpSocket(); //close()
hlipka 0:8b387bed54c2 58
hlipka 0:8b387bed54c2 59 virtual NetUdpSocketErr bind(const Host& me) = 0;
hlipka 0:8b387bed54c2 60
hlipka 0:8b387bed54c2 61 virtual int /*if < 0 : NetUdpSocketErr*/ sendto(const char* buf, int len, Host* pHost) = 0;
hlipka 0:8b387bed54c2 62 virtual int /*if < 0 : NetUdpSocketErr*/ recvfrom(char* buf, int len, Host* pHost) = 0;
hlipka 0:8b387bed54c2 63
hlipka 0:8b387bed54c2 64 /* TODO NTH : printf / scanf helpers that call send/recv */
hlipka 0:8b387bed54c2 65
hlipka 0:8b387bed54c2 66 virtual NetUdpSocketErr close() = 0;
hlipka 0:8b387bed54c2 67
hlipka 0:8b387bed54c2 68 virtual NetUdpSocketErr poll() = 0;
hlipka 0:8b387bed54c2 69
hlipka 0:8b387bed54c2 70 class CDummy;
hlipka 0:8b387bed54c2 71 //Callbacks
hlipka 0:8b387bed54c2 72 template<class T>
hlipka 0:8b387bed54c2 73 //Linker bug : Must be defined here :(
hlipka 0:8b387bed54c2 74 void setOnEvent( T* pItem, void (T::*pMethod)(NetUdpSocketEvent) )
hlipka 0:8b387bed54c2 75 {
hlipka 0:8b387bed54c2 76 m_pCbItem = (CDummy*) pItem;
hlipka 0:8b387bed54c2 77 m_pCbMeth = (void (CDummy::*)(NetUdpSocketEvent)) pMethod;
hlipka 0:8b387bed54c2 78 }
hlipka 0:8b387bed54c2 79
hlipka 0:8b387bed54c2 80 void resetOnEvent(); //Disable callback
hlipka 0:8b387bed54c2 81
hlipka 0:8b387bed54c2 82 protected:
hlipka 0:8b387bed54c2 83 void queueEvent(NetUdpSocketEvent e);
hlipka 0:8b387bed54c2 84 void discardEvents();
hlipka 0:8b387bed54c2 85 void flushEvents(); //to be called during polling
hlipka 0:8b387bed54c2 86
hlipka 0:8b387bed54c2 87 Host m_host;
hlipka 0:8b387bed54c2 88 Host m_client;
hlipka 0:8b387bed54c2 89
hlipka 0:8b387bed54c2 90 friend class Net;
hlipka 0:8b387bed54c2 91 int m_refs;
hlipka 0:8b387bed54c2 92
hlipka 0:8b387bed54c2 93 bool m_closed;
hlipka 0:8b387bed54c2 94 bool m_removed;
hlipka 0:8b387bed54c2 95
hlipka 0:8b387bed54c2 96 private:
hlipka 0:8b387bed54c2 97 //We do not want to execute user code in interrupt routines, so we queue events until the server is polled
hlipka 0:8b387bed54c2 98 //If we port this to a multithreaded OS, we could avoid this (however some functions here are not thread-safe, so beware ;) )
hlipka 0:8b387bed54c2 99 void onEvent(NetUdpSocketEvent e); //To be called on poll
hlipka 0:8b387bed54c2 100 CDummy* m_pCbItem;
hlipka 0:8b387bed54c2 101 void (CDummy::*m_pCbMeth)(NetUdpSocketEvent);
hlipka 0:8b387bed54c2 102 queue<NetUdpSocketEvent> m_events;
hlipka 0:8b387bed54c2 103
hlipka 0:8b387bed54c2 104 };
hlipka 0:8b387bed54c2 105
hlipka 0:8b387bed54c2 106 #endif