//

//  MYDirectoryWatcher.h

//  Murky

//

//  Copyright 2008 Jens Alfke. All rights reserved.

//

#import <Cocoa/Cocoa.h>

/* A wrapper for FSEvents, which notifies its delegate when filesystem changes occur. */

@interface MYDirectoryWatcher : NSObject 

{

    NSString *_path;

    id _target;

    SEL _action;

    UInt64 _lastEventID;

    BOOL _historyDone;

    CFTimeInterval _latency;

    FSEventStreamRef _stream;

}

- (id) initWithDirectory: (NSString*)path target: (id)target action: (SEL)action;

@property (readonly,nonatomic) NSString* path;

@property UInt64 lastEventID;

@property CFTimeInterval latency;

- (BOOL) start;

- (void) pause;

- (void) stop;

- (void) stopTemporarily;               // stop, but re-start on next runloop cycle

@end

@interface MYDirectoryEvent : NSObject

{

    MYDirectoryWatcher *watcher;

    NSString *path;

    UInt64 eventID;

    UInt32 flags;

}

@property (readonly, nonatomic) MYDirectoryWatcher *watcher;

@property (readonly, nonatomic) NSString *path, *relativePath;

@property (readonly, nonatomic) UInt64 eventID;

@property (readonly, nonatomic) UInt32 flags;

@property (readonly, nonatomic) BOOL mustScanSubdirectories;

@property (readonly, nonatomic) BOOL eventsWereDropped;

@property (readonly, nonatomic) BOOL isHistorical;   

@property (readonly, nonatomic) BOOL rootChanged;

@end