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/*
** CWDNSManager.h
**
** Copyright (c) 2004-2007 Ludovic Marcotte
** Copyright (C) 2013 The GNUstep team
**
** Author: Ludovic Marcotte <ludovic@Sophos.ca>
** Riccardo Mottola
**
** This library is free software; you can redistribute it and/or
** modify it under the terms of the GNU Lesser General Public
** License as published by the Free Software Foundation; either
** version 2.1 of the License, or (at your option) any later version.
**
** This library is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
** Lesser General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _Pantomime_H_CWDNSManager
#define _Pantomime_H_CWDNSManager
#include <Pantomime/CWConnection.h>
#import <Foundation/NSArray.h>
#import <Foundation/NSDictionary.h>
#import <Foundation/NSNotification.h>
#import <Foundation/NSObject.h>
#import <Foundation/NSRunLoop.h>
#import <Foundation/NSTimer.h>
#ifdef MACOSX
#import <Foundation/NSMapTable.h>
#include <CoreFoundation/CoreFoundation.h>
#endif
#if defined(__APPLE__) && (MAC_OS_X_VERSION_MAX_ALLOWED <= MAC_OS_X_VERSION_10_4)
#ifndef NSUInteger
#define NSUInteger unsigned int
#endif
#ifndef NSInteger
#define NSInteger int
#endif
#endif
/*!
@const PantomimeDNSResolutionCompleted
@discussion This notification is automatically posted when
the DNS resolution has completed successfully.
*/
extern NSString* PantomimeDNSResolutionCompleted;
/*!
@const PantomimeDNSResolutionFailed
@discussion This notification is automatically posted when
the DNS resolution has failed.
*/
extern NSString* PantomimeDNSResolutionFailed;
#ifdef MACOSX
typedef enum {ET_RDESC, ET_WDESC, ET_EDESC} RunLoopEventType;
/*!
@class CWDNSManager
@discussion This class is used in Pantomime to perform DNS resolution.
Currently, it does not do asynchronous lookups but implements
a simple cache to speedup repetitive requets.
*/
@interface CWDNSManager : NSObject
#else
@interface CWDNSManager : NSObject <RunLoopEvents>
#endif
{
@private
NSMutableArray *_servers, *_queue;
NSMutableDictionary *_cache;
NSTimer *_timer;
#ifdef MACOSX
CFRunLoopSourceRef _runLoopSource;
CFSocketContext *_context;
CFSocketRef _cf_socket;
#endif
unsigned short _packet_id;
BOOL _is_asynchronous;
NSInteger _socket;
}
/*!
@method addressesForName:background:
@discussion This method is used to obtain an array of IP
addresses from a fully qualified domain name.
@param theName The fully qualified domain name.
@param theBOOL If YES, the call is non-blocking and returns nil.
Otherwise, the call is block and returns an
array of addresses, if any.
@result The array of addresses encoded as NSData instances.
*/
- (NSArray *) addressesForName: (NSString *) theName
background: (BOOL) theBOOL;
/*!
@method singleInstance
@discussion This method is used to obtain the shared
CWDNSManager instance for DNS resolution.
@result The shared instance.
*/
+ (id) singleInstance;
#ifdef MACOSX
- (void) receivedEvent: (void *) theData
type: (RunLoopEventType) theType
extra: (void *) theExtra
forMode: (NSString *) theMode;
#endif
@end
#endif // _Pantomime_H_CWDNSManager
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