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62 lines
2.2 KiB
Plaintext
62 lines
2.2 KiB
Plaintext
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsIRequest.idl"
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interface nsIInputStream;
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interface nsIOutputStream;
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interface nsIRequestObserver;
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interface nsIEventTarget;
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[scriptable, uuid(5a19ca27-e041-4aca-8287-eb248d4c50c0)]
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interface nsIAsyncStreamCopier : nsIRequest
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{
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/**
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* Initialize the stream copier.
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*
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* @param aSource
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* contains the data to be copied.
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* @param aSink
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* specifies the destination for the data.
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* @param aTarget
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* specifies the thread on which the copy will occur. a null value
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* is permitted and will cause the copy to occur on an unspecified
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* background thread.
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* @param aSourceBuffered
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* true if aSource implements ReadSegments.
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* @param aSinkBuffered
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* true if aSink implements WriteSegments.
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* @param aChunkSize
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* specifies how many bytes to read/write at a time. this controls
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* the granularity of the copying. it should match the segment size
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* of the "buffered" streams involved.
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* @param aCloseSource
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* true if aSource should be closed after copying.
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* @param aCloseSink
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* true if aSink should be closed after copying.
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*
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* NOTE: at least one of the streams must be buffered.
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*/
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void init(in nsIInputStream aSource,
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in nsIOutputStream aSink,
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in nsIEventTarget aTarget,
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in boolean aSourceBuffered,
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in boolean aSinkBuffered,
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in unsigned long aChunkSize,
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in boolean aCloseSource,
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in boolean aCloseSink);
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/**
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* asyncCopy triggers the start of the copy. The observer will be notified
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* when the copy completes.
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*
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* @param aObserver
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* receives notifications.
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* @param aObserverContext
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* passed to observer methods.
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*/
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void asyncCopy(in nsIRequestObserver aObserver,
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in nsISupports aObserverContext);
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};
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