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lwipNetDnsRequest.h
00001 00002 /* 00003 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com) 00004 00005 Permission is hereby granted, free of charge, to any person obtaining a copy 00006 of this software and associated documentation files (the "Software"), to deal 00007 in the Software without restriction, including without limitation the rights 00008 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 00009 copies of the Software, and to permit persons to whom the Software is 00010 furnished to do so, subject to the following conditions: 00011 00012 The above copyright notice and this permission notice shall be included in 00013 all copies or substantial portions of the Software. 00014 00015 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 00016 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 00017 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 00018 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 00019 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 00020 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 00021 THE SOFTWARE. 00022 */ 00023 00024 #ifndef LWIPNETDNSREQUEST_H 00025 #define LWIPNETDNSREQUEST_H 00026 00027 #define NET_LWIP_STACK 1 00028 #include "if/net/netdnsrequest.h" 00029 00030 //struct ip_addr_t; 00031 #include "lwip/ip_addr.h" 00032 00033 class LwipNetDnsRequest : public NetDnsRequest 00034 { 00035 public: 00036 LwipNetDnsRequest(const char* hostname); 00037 LwipNetDnsRequest(Host* pHost); 00038 virtual ~LwipNetDnsRequest(); 00039 00040 //Execute request & return OK if found, NOTFOUND or ERROR on error, or PROCESSING if the request has not completed yet 00041 virtual void poll(); 00042 00043 protected: 00044 void foundCb(const char *name, ip_addr_t *ipaddr); 00045 00046 private: 00047 enum LwipNetDnsState 00048 { 00049 LWIPNETDNS_START, 00050 LWIPNETDNS_PROCESSING, //Req has not completed 00051 LWIPNETDNS_NOTFOUND, 00052 LWIPNETDNS_ERROR, 00053 LWIPNETDNS_OK 00054 }; 00055 00056 LwipNetDnsState m_state; 00057 bool m_cbFired; 00058 00059 //Static callbacks : Transforms into a C++ callback 00060 static void sFoundCb(const char *name, ip_addr_t *ipaddr, void *arg); 00061 }; 00062 00063 #endif
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