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102 lines
4.3 KiB
Plaintext
102 lines
4.3 KiB
Plaintext
/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 2002
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Darin Fisher <darin@netscape.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsISupports.idl"
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interface nsITransport;
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interface nsIInputStream;
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interface nsIOutputStream;
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/**
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* This service read/writes a stream on a background thread.
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*
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* Use this service to transform any blocking stream (e.g., file stream)
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* into a fully asynchronous stream that can be read/written without
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* blocking the main thread.
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*/
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[scriptable, uuid(8268D474-EFBF-494f-A152-E8A8616F4E52)]
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interface nsIStreamTransportService : nsISupports
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{
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/**
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* CreateInputTransport
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*
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* @param aStream
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* The input stream that will be read on a background thread.
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* This stream must implement "blocking" stream semantics.
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* @param aStartOffset
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* The input stream will be read starting from this offset. Pass
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* -1 to read from the current stream offset. NOTE: this parameter
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* is ignored if the stream does not support nsISeekableStream.
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* @param aReadLimit
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* This parameter limits the number of bytes that will be read from
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* the input stream. Pass -1 to read everything.
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* @param aCloseWhenDone
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* Specify this flag to have the input stream closed once its
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* contents have been completely read.
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*
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* @return nsITransport instance.
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*/
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nsITransport createInputTransport(in nsIInputStream aStream,
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in long long aStartOffset,
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in long long aReadLimit,
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in boolean aCloseWhenDone);
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/**
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* CreateOutputTransport
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*
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* @param aStream
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* The output stream that will be written to on a background thread.
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* This stream must implement "blocking" stream semantics.
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* @param aStartOffset
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* The output stream will be written starting at this offset. Pass
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* -1 to write to the current stream offset. NOTE: this parameter
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* is ignored if the stream does not support nsISeekableStream.
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* @param aWriteLimit
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* This parameter limits the number of bytes that will be written to
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* the output stream. Pass -1 for unlimited writing.
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* @param aCloseWhenDone
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* Specify this flag to have the output stream closed once its
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* contents have been completely written.
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*
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* @return nsITransport instance.
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*/
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nsITransport createOutputTransport(in nsIOutputStream aStream,
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in long long aStartOffset,
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in long long aWriteLimit,
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in boolean aCloseWhenDone);
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};
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