gecko/netwerk/dns/nsIDNSRecord.idl
Patrick McManus 2b45f66a5b Bug 641937 - Blacklist non-responding IP addresses in DNS r=bz
Blacklist non-responding IP addresses for a hostname so the next time
we access that hostname we don't have to wait for a timeout again
2011-07-21 09:18:01 -04:00

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/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
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*
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*
* The Original Code is Mozilla.
*
* The Initial Developer of the Original Code is IBM Corporation.
* Portions created by IBM Corporation are Copyright (C) 2003
* IBM Corporation. All Rights Reserved.
*
* Contributor(s):
* IBM Corp.
*
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* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
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* the provisions above, a recipient may use your version of this file under
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*
* ***** END LICENSE BLOCK ***** */
#include "nsISupports.idl"
native PRNetAddr(union PRNetAddr);
/**
* nsIDNSRecord
*
* this interface represents the result of a DNS lookup. since a DNS
* query may return more than one resolved IP address, the record acts
* like an enumerator, allowing the caller to easily step through the
* list of IP addresses.
*/
[scriptable, uuid(ead9e9d8-7eef-4dae-a7f0-a1edcfb20478)]
interface nsIDNSRecord : nsISupports
{
/**
* @return the canonical hostname for this record. this value is empty if
* the record was not fetched with the RESOLVE_CANONICAL_NAME flag.
*
* e.g., www.mozilla.org --> rheet.mozilla.org
*/
readonly attribute ACString canonicalName;
/**
* this function copies the value of the next IP address into the
* given PRNetAddr struct and increments the internal address iterator.
*
* @param aPort
* A port number to initialize the PRNetAddr with.
*
* @throws NS_ERROR_NOT_AVAILABLE if there is not another IP address in
* the record.
*/
[noscript] PRNetAddr getNextAddr(in PRUint16 aPort);
/**
* this function returns the value of the next IP address as a
* string and increments the internal address iterator.
*
* @throws NS_ERROR_NOT_AVAILABLE if there is not another IP address in
* the record.
*/
ACString getNextAddrAsString();
/**
* this function returns true if there is another address in the record.
*/
boolean hasMore();
/**
* this function resets the internal address iterator to the first
* address in the record.
*/
void rewind();
/**
* This function indicates that the last address obtained via getNextAddr*()
* was not usuable and should be skipped in future uses of this
* record if other addresses are available.
*
* @param aPort is the port number associated with the failure, if any.
* It may be zero if not applicable.
*/
void reportUnusable(in PRUint16 aPort);
};