text: //
  //  DirectoryWatcher.h
  //  GxShareProj
  //
  //  Created by pro2013 on 2018/2/6.
  //  Copyright © 2018年 Gx. All rights reserved.
  //
  
  #import <Foundation/Foundation.h>
  
  @interface DirectoryWatcher : NSObject{
      dispatch_queue_t _zDispatchQueue;
      dispatch_source_t _zSource;
  }
  
  + (instancetype)defaultWatcher;
  - (void)startMonitoringDocumentAsynchronous;
  - (void)stopMonitoringDocument;
  @end
  