Hendrik Lipka / NetServicesMin

Stripped down version of Segundos NetService library (http://mbed.org/users/segundo/libraries/NetServices ). I have removed all NetServices, and all functions which had been disabled. Use this version when you need only pure TCP or UDP functions - this library compiles faster.

Dependencies:   lwip lwip-sys

Dependents:   christmasLights device_server pop3demo device_server_udp ... more

api/DNSRequest.cpp@1:9d93f4dc2f46, 2012-07-18 (annotated)

Committer:
hlipka
Date:
Wed Jul 18 20:28:43 2012 +0000
Revision:
1:9d93f4dc2f46
Parent:
0:8b387bed54c2 
updated to the new mbed library (version 41) and the new LwIP stack. Code is still untested.

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 #include "DNSRequest.h"
hlipka 0:8b387bed54c2 25 #include "if/net/netdnsrequest.h"
hlipka 0:8b387bed54c2 26
hlipka 0:8b387bed54c2 27 DNSRequest::DNSRequest() : m_pNetDnsRequest(NULL), m_pCbItem(NULL), m_pCbMeth(NULL), m_pCb(NULL)
hlipka 0:8b387bed54c2 28 {
hlipka 0:8b387bed54c2 29
hlipka 0:8b387bed54c2 30 }
hlipka 0:8b387bed54c2 31
hlipka 0:8b387bed54c2 32 DNSRequest::~DNSRequest()
hlipka 0:8b387bed54c2 33 {
hlipka 0:8b387bed54c2 34 close();
hlipka 0:8b387bed54c2 35 }
hlipka 0:8b387bed54c2 36
hlipka 0:8b387bed54c2 37 DNSRequestErr DNSRequest::resolve(const char* hostname)
hlipka 0:8b387bed54c2 38 {
hlipka 0:8b387bed54c2 39 if(!m_pNetDnsRequest)
hlipka 0:8b387bed54c2 40 {
hlipka 0:8b387bed54c2 41 m_pNetDnsRequest = Net::dnsRequest(hostname);
hlipka 0:8b387bed54c2 42 if(!m_pNetDnsRequest)
hlipka 0:8b387bed54c2 43 {
hlipka 0:8b387bed54c2 44 return DNS_IF; //Interface did not return a NetDnsRequest (usually because a default interface does not exist)
hlipka 0:8b387bed54c2 45 }
hlipka 0:8b387bed54c2 46 m_pNetDnsRequest->setOnReply(this, &DNSRequest::onNetDnsReply);
hlipka 0:8b387bed54c2 47 return DNS_OK;
hlipka 0:8b387bed54c2 48 }
hlipka 0:8b387bed54c2 49 else
hlipka 0:8b387bed54c2 50 {
hlipka 0:8b387bed54c2 51 return DNS_INUSE; //The previous req has not completed
hlipka 0:8b387bed54c2 52 }
hlipka 0:8b387bed54c2 53 }
hlipka 0:8b387bed54c2 54
hlipka 0:8b387bed54c2 55 DNSRequestErr DNSRequest::resolve(Host* pHost)
hlipka 0:8b387bed54c2 56 {
hlipka 0:8b387bed54c2 57 if(!m_pNetDnsRequest)
hlipka 0:8b387bed54c2 58 {
hlipka 0:8b387bed54c2 59 m_pNetDnsRequest = Net::dnsRequest(pHost);
hlipka 0:8b387bed54c2 60 if(!m_pNetDnsRequest)
hlipka 0:8b387bed54c2 61 {
hlipka 0:8b387bed54c2 62 return DNS_IF; //Interface did not return a NetDnsRequest (usually because a default interface does not exist)
hlipka 0:8b387bed54c2 63 }
hlipka 0:8b387bed54c2 64 m_pNetDnsRequest->setOnReply(this, &DNSRequest::onNetDnsReply);
hlipka 0:8b387bed54c2 65 return DNS_OK;
hlipka 0:8b387bed54c2 66 }
hlipka 0:8b387bed54c2 67 else
hlipka 0:8b387bed54c2 68 {
hlipka 0:8b387bed54c2 69 return DNS_INUSE; //The previous req has not completed
hlipka 0:8b387bed54c2 70 }
hlipka 0:8b387bed54c2 71 }
hlipka 0:8b387bed54c2 72
hlipka 0:8b387bed54c2 73 //Callbacks
hlipka 0:8b387bed54c2 74 void DNSRequest::setOnReply( void (*pMethod)(DNSReply) )
hlipka 0:8b387bed54c2 75 {
hlipka 0:8b387bed54c2 76 m_pCb = pMethod;
hlipka 0:8b387bed54c2 77 }
hlipka 0:8b387bed54c2 78
hlipka 0:8b387bed54c2 79 #if 0 //For doc only
hlipka 0:8b387bed54c2 80 template<class T>
hlipka 0:8b387bed54c2 81 void DNSRequest::setOnReply( T* pItem, void (T::*pMethod)(DNSReply) )
hlipka 0:8b387bed54c2 82 {
hlipka 0:8b387bed54c2 83 m_pCbItem = (CDummy*) pItem;
hlipka 0:8b387bed54c2 84 m_pCbMeth = (void (CDummy::*)(DNSReply)) pMethod;
hlipka 0:8b387bed54c2 85 }
hlipka 0:8b387bed54c2 86 #endif
hlipka 0:8b387bed54c2 87
hlipka 0:8b387bed54c2 88 DNSRequestErr DNSRequest::getResult(IpAddr* pIp)
hlipka 0:8b387bed54c2 89 {
hlipka 0:8b387bed54c2 90 if(!m_pNetDnsRequest)
hlipka 0:8b387bed54c2 91 {
hlipka 0:8b387bed54c2 92 return DNS_SETUP;
hlipka 0:8b387bed54c2 93 }
hlipka 0:8b387bed54c2 94 m_pNetDnsRequest->getResult(pIp);
hlipka 0:8b387bed54c2 95 return DNS_OK;
hlipka 0:8b387bed54c2 96 }
hlipka 0:8b387bed54c2 97
hlipka 0:8b387bed54c2 98 DNSRequestErr DNSRequest::close()
hlipka 0:8b387bed54c2 99 {
hlipka 0:8b387bed54c2 100 if(!m_pNetDnsRequest)
hlipka 0:8b387bed54c2 101 {
hlipka 0:8b387bed54c2 102 return DNS_SETUP;
hlipka 0:8b387bed54c2 103 }
hlipka 0:8b387bed54c2 104 m_pNetDnsRequest->close();
hlipka 0:8b387bed54c2 105 m_pNetDnsRequest = NULL;
hlipka 0:8b387bed54c2 106 return DNS_OK;
hlipka 0:8b387bed54c2 107 }
hlipka 0:8b387bed54c2 108
hlipka 0:8b387bed54c2 109 void DNSRequest::onNetDnsReply(NetDnsReply r)
hlipka 0:8b387bed54c2 110 {
hlipka 0:8b387bed54c2 111 if(m_pCbItem && m_pCbMeth)
hlipka 0:8b387bed54c2 112 (m_pCbItem->*m_pCbMeth)((DNSReply) r);
hlipka 0:8b387bed54c2 113 else if(m_pCb)
hlipka 0:8b387bed54c2 114 m_pCb((DNSReply) r);
hlipka 0:8b387bed54c2 115 }