зеркало из https://github.com/mozilla/pjs.git
74 строки
2.6 KiB
Plaintext
74 строки
2.6 KiB
Plaintext
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
|
|
* The contents of this file are subject to the Netscape 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/NPL/
|
|
*
|
|
* 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 Communicator client code, released
|
|
* March 31, 1998.
|
|
*
|
|
* The Initial Developer of the Original Code is Netscape
|
|
* Communications Corporation. Portions created by Netscape are
|
|
* Copyright (C) 1998-1999 Netscape Communications Corporation. All
|
|
* Rights Reserved.
|
|
*
|
|
*/
|
|
|
|
#include "nsISupports.idl"
|
|
#include "nsrootidl.idl"
|
|
|
|
interface nsIInputStream;
|
|
interface nsIOutputStream;
|
|
|
|
/**
|
|
* The nsIStorageStream interface maintains an internal data buffer that can be
|
|
* filled using a single output stream. One or more independent input streams
|
|
* can be created to read the data from the buffer non-destructively.
|
|
*/
|
|
|
|
[scriptable, uuid(604ad9d0-753e-11d3-90ca-0040056a906e)]
|
|
interface nsIStorageStream : nsISupports
|
|
{
|
|
/**
|
|
* Get a reference to the one and only output stream for this instance.
|
|
* The zero-based startPosition argument is used is used to set the initial
|
|
* write cursor position. The startPosition cannot be set larger than the
|
|
* current buffer length. Calling this method has the side-effect of
|
|
* truncating the internal buffer to startPosition bytes.
|
|
*/
|
|
nsIOutputStream getOutputStream(in PRInt32 startPosition);
|
|
|
|
/**
|
|
* Create a new input stream to read data (written by the singleton output
|
|
* stream) from the internal buffer. Multiple, independent input streams
|
|
* can be created.
|
|
*/
|
|
nsIInputStream newInputStream(in PRInt32 startPosition);
|
|
|
|
/**
|
|
* The length attribute indicates the total number of bytes stored in the
|
|
* nsIStorageStream internal buffer, regardless of any consumption by input
|
|
* streams. Assigning to the length field can be used to truncate the
|
|
* buffer data, but can not be used when either the instance's output
|
|
* stream is in use.
|
|
*
|
|
* @See #writeInProgress */
|
|
attribute PRUint32 length;
|
|
|
|
/**
|
|
* True, when output stream has not yet been Close'ed
|
|
*/
|
|
readonly attribute boolean writeInProgress;
|
|
};
|
|
|
|
%{C++
|
|
// Factory method
|
|
NS_COM nsresult
|
|
NS_NewStorageStream(PRUint32 segmentSize, PRUint32 maxSize, nsIStorageStream **result);
|
|
%}
|