#import "QRunLoopOperation.h"
#include <SystemConfiguration/SystemConfiguration.h>

@interface QReachabilityOperation : QRunLoopOperation {
    NSString *                      _hostName;
    NSUInteger                      _flagsTargetMask;
    NSUInteger                      _flagsTargetValue;
    NSUInteger                      _flags;
    SCNetworkReachabilityRef        _ref;
}

// Initialises the operation to monitor the reachability of the specified 
// host.  The operation finishes when (flags & flagsTargetMask) == flagsTargetValue.
- (id)initWithHostName:(NSString *)hostName;

// Things that are configured by the init method and can't be changed.
@property (copy,   readonly ) NSString *    hostName;

// Things you can configure before queuing the operation.

// runLoopThread and runLoopModes inherited from QRunLoopOperation
@property (assign, readwrite) NSUInteger    flagsTargetMask;
@property (assign, readwrite) NSUInteger    flagsTargetValue;

// Things that change as part of the progress of the operation.

// error property inherited from QRunLoopOperation
@property (assign, readonly ) NSUInteger    flags;              // observable, changes on the actual run loop thread

@end