Diff: extlib/EthernetNetIf/LPC1768/if/lwip/lwipNetDnsRequest.h

Revision:

0:521ba375aa0f

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/extlib/EthernetNetIf/LPC1768/if/lwip/lwipNetDnsRequest.h	Mon Aug 06 12:37:59 2012 +0000
@@ -0,0 +1,67 @@
+
+/*
+Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
+ 
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+ 
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+ 
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+
+#ifndef LWIPNETDNSREQUEST_H
+#define LWIPNETDNSREQUEST_H
+
+#define NET_LWIP_STACK 1
+#include "if/net/netdnsrequest.h"
+
+//struct ip_addr_t;
+#include "lwip/ip_addr.h"
+
+class LwipNetDnsRequest : public NetDnsRequest
+{
+public:
+  LwipNetDnsRequest(const char* hostname);
+  LwipNetDnsRequest(Host* pHost);
+  virtual ~LwipNetDnsRequest();
+
+  //Execute request & return OK if found, NOTFOUND or ERROR on error, or PROCESSING if the request has not completed yet
+  virtual void poll();
+  
+  virtual void close();
+
+protected:
+  void foundCb(const char *name, ip_addr_t *ipaddr);
+  
+private:
+  enum LwipNetDnsState
+  {
+    LWIPNETDNS_START,
+    LWIPNETDNS_PROCESSING, //Req has not completed
+    LWIPNETDNS_NOTFOUND,
+    LWIPNETDNS_ERROR,
+    LWIPNETDNS_OK
+  };
+
+  LwipNetDnsState m_state;
+  bool m_cbFired;
+  
+  //Static callbacks : Transforms into a C++ callback
+  static void sFoundCb(const char *name, ip_addr_t *ipaddr, void *arg);
+  
+  bool m_closing;
+};
+
+#endif