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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsIRequest.idl"
interface nsIInputStream;
interface nsIOutputStream;
interface nsIRequestObserver;
interface nsIEventTarget;
// You should prefer nsIAsyncStreamCopier2
[scriptable, uuid(5a19ca27-e041-4aca-8287-eb248d4c50c0)]
interface nsIAsyncStreamCopier : nsIRequest
{
/**
* Initialize the stream copier.
*
* @param aSource
* contains the data to be copied.
* @param aSink
* specifies the destination for the data.
* @param aTarget
* specifies the thread on which the copy will occur. a null value
* is permitted and will cause the copy to occur on an unspecified
* background thread.
* @param aSourceBuffered
* true if aSource implements ReadSegments.
* @param aSinkBuffered
* true if aSink implements WriteSegments.
* @param aChunkSize
* specifies how many bytes to read/write at a time. this controls
* the granularity of the copying. it should match the segment size
* of the "buffered" streams involved.
* @param aCloseSource
* true if aSource should be closed after copying.
* @param aCloseSink
* true if aSink should be closed after copying.
*
* NOTE: at least one of the streams must be buffered. If you do not know
* whether your streams are buffered, you should use nsIAsyncStreamCopier2
* instead.
*/
void init(in nsIInputStream aSource,
in nsIOutputStream aSink,
in nsIEventTarget aTarget,
in boolean aSourceBuffered,
in boolean aSinkBuffered,
in unsigned long aChunkSize,
in boolean aCloseSource,
in boolean aCloseSink);
/**
* asyncCopy triggers the start of the copy. The observer will be notified
* when the copy completes.
*
* @param aObserver
* receives notifications.
* @param aObserverContext
* passed to observer methods.
*/
void asyncCopy(in nsIRequestObserver aObserver,
in nsISupports aObserverContext);
};