Rahol Rajan / NetServices-Traffic

Used in Live Traffic Update Nokia LCD Display Project

Fork of NetServices by Segundo Equipo

api/DNSRequest.cpp@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 #include "DNSRequest.h"
segundo 0:ac1725ba162c 25 #include "if/net/netdnsrequest.h"
segundo 0:ac1725ba162c 26
segundo 0:ac1725ba162c 27 DNSRequest::DNSRequest() : m_pNetDnsRequest(NULL), m_pCbItem(NULL), m_pCbMeth(NULL), m_pCb(NULL)
segundo 0:ac1725ba162c 28 {
segundo 0:ac1725ba162c 29
segundo 0:ac1725ba162c 30 }
segundo 0:ac1725ba162c 31
segundo 0:ac1725ba162c 32 DNSRequest::~DNSRequest()
segundo 0:ac1725ba162c 33 {
segundo 0:ac1725ba162c 34 close();
segundo 0:ac1725ba162c 35 }
segundo 0:ac1725ba162c 36
segundo 0:ac1725ba162c 37 DNSRequestErr DNSRequest::resolve(const char* hostname)
segundo 0:ac1725ba162c 38 {
segundo 0:ac1725ba162c 39 if(!m_pNetDnsRequest)
segundo 0:ac1725ba162c 40 {
segundo 0:ac1725ba162c 41 m_pNetDnsRequest = Net::dnsRequest(hostname);
segundo 0:ac1725ba162c 42 if(!m_pNetDnsRequest)
segundo 0:ac1725ba162c 43 {
segundo 0:ac1725ba162c 44 return DNS_IF; //Interface did not return a NetDnsRequest (usually because a default interface does not exist)
segundo 0:ac1725ba162c 45 }
segundo 0:ac1725ba162c 46 m_pNetDnsRequest->setOnReply(this, &DNSRequest::onNetDnsReply);
segundo 0:ac1725ba162c 47 return DNS_OK;
segundo 0:ac1725ba162c 48 }
segundo 0:ac1725ba162c 49 else
segundo 0:ac1725ba162c 50 {
segundo 0:ac1725ba162c 51 return DNS_INUSE; //The previous req has not completed
segundo 0:ac1725ba162c 52 }
segundo 0:ac1725ba162c 53 }
segundo 0:ac1725ba162c 54
segundo 0:ac1725ba162c 55 DNSRequestErr DNSRequest::resolve(Host* pHost)
segundo 0:ac1725ba162c 56 {
segundo 0:ac1725ba162c 57 if(!m_pNetDnsRequest)
segundo 0:ac1725ba162c 58 {
segundo 0:ac1725ba162c 59 m_pNetDnsRequest = Net::dnsRequest(pHost);
segundo 0:ac1725ba162c 60 if(!m_pNetDnsRequest)
segundo 0:ac1725ba162c 61 {
segundo 0:ac1725ba162c 62 return DNS_IF; //Interface did not return a NetDnsRequest (usually because a default interface does not exist)
segundo 0:ac1725ba162c 63 }
segundo 0:ac1725ba162c 64 m_pNetDnsRequest->setOnReply(this, &DNSRequest::onNetDnsReply);
segundo 0:ac1725ba162c 65 return DNS_OK;
segundo 0:ac1725ba162c 66 }
segundo 0:ac1725ba162c 67 else
segundo 0:ac1725ba162c 68 {
segundo 0:ac1725ba162c 69 return DNS_INUSE; //The previous req has not completed
segundo 0:ac1725ba162c 70 }
segundo 0:ac1725ba162c 71 }
segundo 0:ac1725ba162c 72
segundo 0:ac1725ba162c 73 //Callbacks
segundo 0:ac1725ba162c 74 void DNSRequest::setOnReply( void (*pMethod)(DNSReply) )
segundo 0:ac1725ba162c 75 {
segundo 0:ac1725ba162c 76 m_pCb = pMethod;
segundo 0:ac1725ba162c 77 }
segundo 0:ac1725ba162c 78
segundo 0:ac1725ba162c 79 #if 0 //For doc only
segundo 0:ac1725ba162c 80 template<class T>
segundo 0:ac1725ba162c 81 void DNSRequest::setOnReply( T* pItem, void (T::*pMethod)(DNSReply) )
segundo 0:ac1725ba162c 82 {
segundo 0:ac1725ba162c 83 m_pCbItem = (CDummy*) pItem;
segundo 0:ac1725ba162c 84 m_pCbMeth = (void (CDummy::*)(DNSReply)) pMethod;
segundo 0:ac1725ba162c 85 }
segundo 0:ac1725ba162c 86 #endif
segundo 0:ac1725ba162c 87
segundo 0:ac1725ba162c 88 DNSRequestErr DNSRequest::getResult(IpAddr* pIp)
segundo 0:ac1725ba162c 89 {
segundo 0:ac1725ba162c 90 if(!m_pNetDnsRequest)
segundo 0:ac1725ba162c 91 {
segundo 0:ac1725ba162c 92 return DNS_SETUP;
segundo 0:ac1725ba162c 93 }
segundo 0:ac1725ba162c 94 m_pNetDnsRequest->getResult(pIp);
segundo 0:ac1725ba162c 95 return DNS_OK;
segundo 0:ac1725ba162c 96 }
segundo 0:ac1725ba162c 97
segundo 0:ac1725ba162c 98 DNSRequestErr DNSRequest::close()
segundo 0:ac1725ba162c 99 {
segundo 0:ac1725ba162c 100 if(!m_pNetDnsRequest)
segundo 0:ac1725ba162c 101 {
segundo 0:ac1725ba162c 102 return DNS_SETUP;
segundo 0:ac1725ba162c 103 }
segundo 0:ac1725ba162c 104 m_pNetDnsRequest->close();
segundo 0:ac1725ba162c 105 m_pNetDnsRequest = NULL;
segundo 0:ac1725ba162c 106 return DNS_OK;
segundo 0:ac1725ba162c 107 }
segundo 0:ac1725ba162c 108
segundo 0:ac1725ba162c 109 void DNSRequest::onNetDnsReply(NetDnsReply r)
segundo 0:ac1725ba162c 110 {
segundo 0:ac1725ba162c 111 if(m_pCbItem && m_pCbMeth)
segundo 0:ac1725ba162c 112 (m_pCbItem->*m_pCbMeth)((DNSReply) r);
segundo 0:ac1725ba162c 113 else if(m_pCb)
segundo 0:ac1725ba162c 114 m_pCb((DNSReply) r);
segundo 0:ac1725ba162c 115 }