зеркало из https://github.com/mozilla/pjs.git
74 строки
2.6 KiB
Plaintext
74 строки
2.6 KiB
Plaintext
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is Mozilla Communicator client code, released
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* March 31, 1998.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998-1999 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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*/
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#include "nsISupports.idl"
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#include "nsrootidl.idl"
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interface nsIInputStream;
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interface nsIOutputStream;
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/**
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* The nsIStorageStream interface maintains an internal data buffer that can be
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* filled using a single output stream. One or more independent input streams
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* can be created to read the data from the buffer non-destructively.
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*/
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[scriptable, uuid(604ad9d0-753e-11d3-90ca-0040056a906e)]
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interface nsIStorageStream : nsISupports
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{
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/**
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* Get a reference to the one and only output stream for this instance.
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* The zero-based startPosition argument is used is used to set the initial
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* write cursor position. The startPosition cannot be set larger than the
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* current buffer length. Calling this method has the side-effect of
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* truncating the internal buffer to startPosition bytes.
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*/
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nsIOutputStream getOutputStream(in PRInt32 startPosition);
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/**
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* Create a new input stream to read data (written by the singleton output
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* stream) from the internal buffer. Multiple, independent input streams
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* can be created.
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*/
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nsIInputStream newInputStream(in PRInt32 startPosition);
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/**
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* The length attribute indicates the total number of bytes stored in the
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* nsIStorageStream internal buffer, regardless of any consumption by input
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* streams. Assigning to the length field can be used to truncate the
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* buffer data, but can not be used when either the instance's output
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* stream is in use.
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*
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* @See #writeInProgress */
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attribute PRUint32 length;
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/**
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* True, when output stream has not yet been Close'ed
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*/
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readonly attribute boolean writeInProgress;
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};
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%{C++
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// Factory method
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NS_COM nsresult
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NS_NewStorageStream(PRUint32 segmentSize, PRUint32 maxSize, nsIStorageStream **result);
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%}
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