mimil owns / NetServicesProxy

A modified version of http://mbed.org/users/segundo/libraries/NetServices/ljhqix to add HTTP proxy feature (based on http://mbed.org/users/igorsk/programs/NetServicesSource/ltjpag)

Dependents:   SenseClient

if/net/netudpsocket.h@0:308f83189a3f, 2011-09-06 (annotated)

Committer:
mimil
Date:
Tue Sep 06 13:26:45 2011 +0000
Revision:
0:308f83189a3f

        

        
Who changed what in which revision?

        

            
                
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/*





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Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)





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Permission is hereby granted, free of charge, to any person obtaining a copy





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of this software and associated documentation files (the "Software"), to deal





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in the Software without restriction, including without limitation the rights





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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell





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copies of the Software, and to permit persons to whom the Software is





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furnished to do so, subject to the following conditions:





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The above copyright notice and this permission notice shall be included in





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all copies or substantial portions of the Software.





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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR





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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,





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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE





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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER





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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,





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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN





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THE SOFTWARE.





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*/





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#ifndef NETUDPSOCKET_H





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#define NETUDPSOCKET_H





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#include "net.h"





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#include "host.h"





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#include <queue>





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using std::queue;





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//Implements a Berkeley-like socket if





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//Can be interfaced either to lwip or a Telit module





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enum NetUdpSocketErr





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{





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  __NETUDPSOCKET_MIN = -0xFFFF,





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  NETUDPSOCKET_SETUP, //NetUdpSocket not properly configured





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  NETUDPSOCKET_IF, //If has problems





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  NETUDPSOCKET_MEM, //Not enough mem





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  NETUDPSOCKET_INUSE, //If/Port is in use





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//...





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  NETUDPSOCKET_OK = 0





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};





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enum NetUdpSocketEvent //Only one lonely event here... but who knows, maybe some day there'll be another one!





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{





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  NETUDPSOCKET_READABLE, //Data in buf





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};





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class NetUdpSocket





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{





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public:





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  NetUdpSocket();





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  virtual ~NetUdpSocket(); //close()





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  virtual NetUdpSocketErr bind(const Host& me) = 0;





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  virtual int /*if < 0 : NetUdpSocketErr*/ sendto(const char* buf, int len, Host* pHost) = 0;





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  virtual int /*if < 0 : NetUdpSocketErr*/ recvfrom(char* buf, int len, Host* pHost) = 0;





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  /* TODO NTH : printf / scanf helpers that call send/recv */





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  virtual NetUdpSocketErr close() = 0;





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  virtual NetUdpSocketErr poll() = 0;





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  class CDummy;





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  //Callbacks





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  template<class T> 





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  //Linker bug : Must be defined here :(





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  void setOnEvent( T* pItem, void (T::*pMethod)(NetUdpSocketEvent) )





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  {





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    m_pCbItem = (CDummy*) pItem;





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    m_pCbMeth = (void (CDummy::*)(NetUdpSocketEvent)) pMethod;





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  }





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  void resetOnEvent(); //Disable callback





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protected:





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  void queueEvent(NetUdpSocketEvent e);





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  void discardEvents();  





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  void flushEvents(); //to be called during polling





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  Host m_host;





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  Host m_client;





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  friend class Net;





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  int m_refs;





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  bool m_closed;





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  bool m_removed;





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private:





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  //We do not want to execute user code in interrupt routines, so we queue events until the server is polled





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  //If we port this to a multithreaded OS, we could avoid this (however some functions here are not thread-safe, so beware ;) )





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  void onEvent(NetUdpSocketEvent e); //To be called on poll





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  CDummy* m_pCbItem;





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  void (CDummy::*m_pCbMeth)(NetUdpSocketEvent);





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  queue<NetUdpSocketEvent> m_events;





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};





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#endif