зеркало из https://github.com/mozilla/pjs.git
109 строки
3.6 KiB
Plaintext
109 строки
3.6 KiB
Plaintext
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
|
* 1.1 (the "License"); you may not use this file except in compliance with
|
|
* the License. You may obtain a copy of the License at
|
|
* http://www.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
* for the specific language governing rights and limitations under the
|
|
* License.
|
|
*
|
|
* The Original Code is Mozilla FastLoad code.
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* Netscape Communications Corporation.
|
|
* Portions created by the Initial Developer are Copyright (C) 2001
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either of the GNU General Public License Version 2 or later (the "GPL"),
|
|
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
* use your version of this file under the terms of the MPL, indicate your
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this file under
|
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
|
|
/*
|
|
* nsISeekableStream
|
|
*
|
|
* Note that a stream might not implement all methods (e.g., a readonly stream
|
|
* won't implement setEOF)
|
|
*
|
|
* @status UNDER_REVIEW
|
|
*/
|
|
|
|
#include "nsISupports.idl"
|
|
|
|
[scriptable, uuid(8429d350-1040-4661-8b71-f2a6ba455980)]
|
|
interface nsISeekableStream : nsISupports
|
|
{
|
|
/*
|
|
* Sets the stream pointer to the value of the 'offset' parameter
|
|
*/
|
|
const PRInt32 NS_SEEK_SET = 0;
|
|
|
|
/*
|
|
* Sets the stream pointer to its current location plus the value
|
|
* of the offset parameter.
|
|
*/
|
|
const PRInt32 NS_SEEK_CUR = 1;
|
|
|
|
/*
|
|
* Sets the stream pointer to the size of the stream plus the value
|
|
* of the offset parameter.
|
|
*/
|
|
const PRInt32 NS_SEEK_END = 2;
|
|
|
|
/**
|
|
* seek
|
|
*
|
|
* This method moves the stream offset of the steam implementing this
|
|
* interface.
|
|
*
|
|
* @param whence specifies how to interpret the 'offset' parameter in
|
|
* setting the stream offset associated with the implementing
|
|
* stream.
|
|
*
|
|
* @param offset specifies a value, in bytes, that is used in conjunction
|
|
* with the 'whence' parameter to set the stream offset of the
|
|
* implementing stream. A negative value causes seeking in
|
|
* the reverse direction.
|
|
*
|
|
* @throws NS_BASE_STREAM_CLOSED if called on a closed stream.
|
|
*/
|
|
void seek(in long whence, in long long offset);
|
|
|
|
/**
|
|
* tell
|
|
*
|
|
* This method reports the current offset, in bytes, from the start of the
|
|
* stream.
|
|
*
|
|
* @throws NS_BASE_STREAM_CLOSED if called on a closed stream.
|
|
*/
|
|
long long tell();
|
|
|
|
|
|
/**
|
|
* setEOF
|
|
*
|
|
* This method truncates the stream at the current offset.
|
|
*
|
|
* @throws NS_BASE_STREAM_CLOSED if called on a closed stream.
|
|
*/
|
|
void setEOF();
|
|
};
|