Dirk-Willem van Gulik (NXP/mbed) / Mbed 2 deprecated AmpereMeter

Example self-announcing webserver which controls a servo through a smallHTML userinterface.

Dependencies:   mbed

api/DNSRequest.cpp@0:a259777c45a3, 2010-08-14 (annotated)

Committer:
dirkx
Date:
Sat Aug 14 15:56:01 2010 +0000
Revision:
0:a259777c45a3

        

        
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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#include "DNSRequest.h"





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DNSRequest::DNSRequest() : m_pNetDnsRequest(NULL), m_pCbItem(NULL), m_pCbMeth(NULL), m_pCb(NULL)





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{





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}





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DNSRequest::~DNSRequest()





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{





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  close();





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}





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DNSRequestErr DNSRequest::resolve(const char* hostname)





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{





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  if(!m_pNetDnsRequest)





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  {





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    m_pNetDnsRequest = Net::dnsRequest(hostname);





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    if(!m_pNetDnsRequest)





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    {





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      return DNS_IF; //Interface did not return a NetDnsRequest (usually because a default interface does not exist)





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    }





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    m_pNetDnsRequest->setOnReply(this, &DNSRequest::onNetDnsReply);





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    return DNS_OK;





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  }





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  else





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  {





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    return DNS_INUSE; //The previous req has not completed





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  }





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}





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DNSRequestErr DNSRequest::resolve(Host* pHost)





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{





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  if(!m_pNetDnsRequest)





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  {





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    m_pNetDnsRequest = Net::dnsRequest(pHost);





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    if(!m_pNetDnsRequest)





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    {





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      return DNS_IF; //Interface did not return a NetDnsRequest (usually because a default interface does not exist)





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    }





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    m_pNetDnsRequest->setOnReply(this, &DNSRequest::onNetDnsReply);





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    return DNS_OK;





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  }





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  else





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  {





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    return DNS_INUSE; //The previous req has not completed





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  }





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}





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//Callbacks





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void DNSRequest::setOnReply( void (*pMethod)(DNSReply) )





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{





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  m_pCb = pMethod;





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}





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#if 0 //For doc only





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template<class T> 





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void DNSRequest::setOnReply( T* pItem, void (T::*pMethod)(DNSReply) )





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{





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  m_pCbItem = (CDummy*) pItem;





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





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}





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#endif





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DNSRequestErr DNSRequest::getResult(IpAddr* pIp)





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{





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  if(!m_pNetDnsRequest)





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  {





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    return DNS_SETUP;





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  }





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  m_pNetDnsRequest->getResult(pIp);





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  return DNS_OK;





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}





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DNSRequestErr DNSRequest::close()





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{





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  if(!m_pNetDnsRequest)





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  {





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    return DNS_SETUP;





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  }





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  m_pNetDnsRequest->close();





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  m_pNetDnsRequest = NULL;





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  return DNS_OK;





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}





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void DNSRequest::onNetDnsReply(NetDnsReply r)





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{





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  if(m_pCbItem && m_pCbMeth)





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    (m_pCbItem->*m_pCbMeth)((DNSReply) r);





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  else if(m_pCb)





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    m_pCb((DNSReply) r);





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}