AsyncCopyController.h

#import <Cocoa/Cocoa.h> 

@interface AsyncCopyController : NSObject
-(OSStatus)copySource : (NSString *)aSource ToDestination: (NSString *)aDestDir setDelegate : (id)object;
//delegate method
-(void)didReceiveCurrentPath : (NSString *)curremtItemPath bytesCompleted : (unsigned long long)floatBytesCompleted currentStageOfFileOperation : (unsigned long)stage;
-(void)didCopyOperationComplete : (BOOL)boolean;
-(void)didReceiveCopyError : (NSString *)Error;
-(void)cancelAllAsyncCopyOperation;
@end

AsyncCopyController.m

#import <Cocoa/Cocoa.h> 

@@implementation AsyncCopyController 
-(OSStatus)copySource : (NSString *)aSource ToDestination: (NSString *)aDestDir setDelegate : (id)object;
{
  return 0;
}

-(void)didReceiveCurrentPath : (NSString *)curremtItemPath bytesCompleted : (unsigned long long)floatBytesCompleted currentStageOfFileOperation : (unsigned long)stage;
{
}

-(void)didCopyOperationComplete : (BOOL)boolean;
{
}

-(void)didReceiveCopyError : (NSString *)Error;
{
}

-(void)cancelAllAsyncCopyOperation;
{
}

@end