/*++

Copyright (c) 1991	Microsoft Corporation

Module Name:

	file.hxx

Abstract:

	This module contains the declaration for the FSN_FILE class. FSN_FILE
	is derived from the abstract FSNODE class. It offers an interface which
	supports manipulation of the external (i.e. non data) portion of files.

Author:

	David J. Gilman (davegi) 09-Jan-1991

Environment:

	ULIB, User Mode

--*/

#if ! defined( _FSN_FILE_ )

#define _FSN_FILE_

#include "fsnode.hxx"
#include "filestrm.hxx"

//
//	Error Codes from a copy
//
typedef enum _COPY_ERROR {
	COPY_ERROR_ACCESS_DENIED	=	ERROR_ACCESS_DENIED,
	COPY_ERROR_SHARE_VIOLATION	=	ERROR_SHARING_VIOLATION,
	COPY_ERROR_NO_MEMORY		=	ERROR_NOT_ENOUGH_MEMORY,
	COPY_ERROR_DISK_FULL		=	ERROR_DISK_FULL,
	COPY_ERROR_INVALID_NAME 	=	ERROR_INVALID_NAME
} COPY_ERROR, *PCOPY_ERROR;


//
//	Forward references
//

DECLARE_CLASS( FSN_FILE );
DECLARE_CLASS( FSN_FILTER );

class FSN_FILE : public FSNODE {

	friend FSN_FILTER;
	friend SYSTEM;

	public:

		DECLARE_CAST_MEMBER_FUNCTION( FSN_FILE );

		NONVIRTUAL
        ULIB_EXPORT
        BOOLEAN
		Copy (
            IN OUT  PPATH       NewFile,
            OUT     PCOPY_ERROR ErrorCode           DEFAULT NULL,
            IN      BOOLEAN     OverwriteReadOnly   DEFAULT FALSE,
            IN      BOOLEAN     ResetReadOnly       DEFAULT FALSE,
            IN      BOOLEAN     Restartable         DEFAULT FALSE,
            IN      LPPROGRESS_ROUTINE CallBack     DEFAULT NULL,
            IN      VOID *      Data                DEFAULT NULL,
            IN      PBOOL       Cancel              DEFAULT NULL

			) CONST;

        VIRTUAL
        BOOLEAN
        DeleteFromDisk(
            IN BOOLEAN      Force DEFAULT FALSE
            );

        NONVIRTUAL
		ULONG
		QuerySize (
			) CONST;

        ULIB_EXPORT
        PFILE_STREAM
		QueryStream (
			IN STREAMACCESS Access
			);

	protected:

		DECLARE_CONSTRUCTOR( FSN_FILE );

	private:

};



INLINE
ULONG
FSN_FILE::QuerySize (
	) CONST

/*++

Routine Description:

	Return the size of the file in bytes.

Arguments:

	None.

Return Value:

	ULONG - returns the file size

--*/

{
	return( _FileData.nFileSizeLow );
}

#endif // _FSN_FILE_