/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 *
 * The contents of this file are subject to the Netscape Public License
 * Version 1.0 (the "NPL"); you may not use this file except in
 * compliance with the NPL.  You may obtain a copy of the NPL at
 * http://www.mozilla.org/NPL/
 *
 * Software distributed under the NPL is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
 * for the specific language governing rights and limitations under the
 * NPL.
 *
 * The Initial Developer of this code under the NPL is Netscape
 * Communications Corporation.  Portions created by Netscape are
 * Copyright (C) 1998 Netscape Communications Corporation.  All Rights
 * Reserved.
 */

//    Functions for nsPersistentFileDescriptor that depend on streams, and so
//    cannot be made independent of base.

#include "nscore.h"
#include "nsError.h"

class nsPersistentFileDescriptor;
class nsInputStream;
class nsOutputStream;
class nsIInputStream;
class nsIOutputStream;
class nsFileURL;
class nsFileSpec;

NS_COM nsOutputStream& operator << (nsOutputStream& s, const nsFileURL& spec);
NS_COM nsresult ReadDescriptor(
	nsIInputStream* aStream, nsPersistentFileDescriptor&);
NS_COM nsresult WriteDescriptor(
	nsIOutputStream* aStream,
	const nsPersistentFileDescriptor&);
        // writes the data to a file
NS_COM nsInputStream& operator >> (
    nsInputStream&,
    nsPersistentFileDescriptor&);
        // reads the data from a stream (file or string)
NS_COM nsOutputStream& operator << (
    nsOutputStream&,
    const nsPersistentFileDescriptor&);
    	// writes the data to a  stream (file or string)