pjs/xpcom/io/nsIPipe.idl

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: NPL 1.1/GPL 2.0/LGPL 2.1
*
* 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.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either 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 NPL, 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 NPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsIAsyncInputStream.idl"
#include "nsIAsyncOutputStream.idl"
interface nsIMemory;
[scriptable, uuid(f4211abc-61b3-11d4-9877-00c04fa0cf4a)]
interface nsIPipe : nsISupports
{
/**
* initialize this pipe
*/
void init(in boolean nonBlockingInput,
in boolean nonBlockingOutput,
in unsigned long segmentSize,
in unsigned long segmentCount,
in nsIMemory segmentAllocator);
readonly attribute nsIAsyncInputStream inputStream;
readonly attribute nsIAsyncOutputStream outputStream;
};
[scriptable, uuid(8C39EF62-F7C9-11d4-98F5-001083010E9B)]
interface nsISearchableInputStream : nsISupports
{
/**
* Searches for a string in the input stream. Since the stream has a notion
* of EOF, it is possible that the string may at some time be in the
* buffer, but is is not currently found up to some offset. Consequently,
* both the found and not found cases return an offset:
* if found, return offset where it was found
* if not found, return offset of the first byte not searched
* In the case the stream is at EOF and the string is not found, the first
* byte not searched will correspond to the length of the buffer.
*/
void search(in string forString,
in boolean ignoreCase,
out boolean found,
out unsigned long offsetSearchedTo);
};
%{C++
extern NS_COM nsresult
NS_NewPipe2(nsIAsyncInputStream **pipeIn,
nsIAsyncOutputStream **pipeOut,
PRBool nonBlockingInput = PR_FALSE,
PRBool nonBlockingOutput = PR_FALSE,
PRUint32 segmentSize = 0,
PRUint32 segmentCount = 0,
nsIMemory *segmentAlloc = nsnull);
inline nsresult
NS_NewPipe(nsIInputStream **pipeIn,
nsIOutputStream **pipeOut,
PRUint32 segmentSize = 0,
PRUint32 maxSize = 0,
PRBool nonBlockingInput = PR_FALSE,
PRBool nonBlockingOutput = PR_FALSE,
nsIMemory *segmentAlloc = nsnull)
{
PRUint32 segmentCount;
if (segmentSize == 0)
segmentCount = 0; // use default
else
segmentCount = maxSize / segmentSize;
nsIAsyncInputStream *in;
nsIAsyncOutputStream *out;
nsresult rv = NS_NewPipe2(&in, &out, nonBlockingInput, nonBlockingOutput,
segmentSize, segmentCount, segmentAlloc);
if (NS_FAILED(rv)) return rv;
*pipeIn = in;
*pipeOut = out;
return NS_OK;
}
%}