Daniel Peter / NetServices

api/UDPSocket.cpp@3:0c324737064d, 2010-11-09 (annotated)

Committer:
mbed714
Date:
Tue Nov 09 19:32:44 2010 +0000
Revision:
3:0c324737064d
Parent:
0:98aadd37a5c5 

        

        
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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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#include "UDPSocket.h"





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#include "if/net/netudpsocket.h"





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UDPSocket::UDPSocket() : m_pNetUdpSocket(NULL), m_pCbItem(NULL), m_pCbMeth(NULL), m_pCb(NULL)





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{





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}





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UDPSocket::~UDPSocket() //close()





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{





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  close();





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}





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UDPSocketErr UDPSocket::bind(const Host& me)





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{





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  UDPSocketErr udpSocketErr = checkInst();





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  if(udpSocketErr)





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    return udpSocketErr;





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  return (UDPSocketErr) m_pNetUdpSocket->bind(me); 





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}





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int /*if < 0 : UDPSocketErr*/ UDPSocket::sendto(const char* buf, int len, Host* pHost)





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{





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  UDPSocketErr udpSocketErr = checkInst();





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  if(udpSocketErr)





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    return udpSocketErr;





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  return m_pNetUdpSocket->sendto(buf, len, pHost);  





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}





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int /*if < 0 : UDPSocketErr*/ UDPSocket::recvfrom(char* buf, int len, Host* pHost)





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{





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  UDPSocketErr udpSocketErr = checkInst();





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  if(udpSocketErr)





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    return udpSocketErr;





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  return m_pNetUdpSocket->recvfrom(buf, len, pHost);





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}





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UDPSocketErr UDPSocket::close()





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{





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  if(!m_pNetUdpSocket)





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    return UDPSOCKET_SETUP;





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  m_pNetUdpSocket->resetOnEvent();





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  UDPSocketErr udpSocketErr = (UDPSocketErr) m_pNetUdpSocket->close(); //Close (can already be closed)





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  Net::releaseUdpSocket(m_pNetUdpSocket); //And release it so it can be freed when properly removed





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  m_pNetUdpSocket = NULL;





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  return udpSocketErr;





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}





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//Callbacks





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void UDPSocket::setOnEvent( void (*pMethod)(UDPSocketEvent) )





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{





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  m_pCb = pMethod;





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}





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#if 0 //For info only





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template<class T> 





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void UDPSocket::setOnEvent( T* pItem, void (T::*pMethod)(UDPSocketEvent) )





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{





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  m_pCbItem = (CDummy*) pItem;





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





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}





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#endif





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void UDPSocket::resetOnEvent() //Disable callback





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{





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  m_pCb = NULL;





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  m_pCbItem = NULL;





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  m_pCbMeth = NULL;





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}





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void UDPSocket::onNetUdpSocketEvent(NetUdpSocketEvent e)





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{





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  if(m_pCbItem && m_pCbMeth)





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    (m_pCbItem->*m_pCbMeth)((UDPSocketEvent) e);





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  else if(m_pCb)





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    m_pCb((UDPSocketEvent) e);





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}





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UDPSocketErr UDPSocket::checkInst()





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{





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  if(!m_pNetUdpSocket)





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  {





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    m_pNetUdpSocket = Net::udpSocket();





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    if(!m_pNetUdpSocket)





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    {





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      return UDPSOCKET_IF; //Interface did not return a socket (usually because a default interface does not exist)





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    }





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    m_pNetUdpSocket->setOnEvent(this, &UDPSocket::onNetUdpSocketEvent);





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  }





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  return UDPSOCKET_OK;





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}