netwerk/base/public/nsIAsyncStreamCopier.idl

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/netwerk/base/public/nsIAsyncStreamCopier.idl	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,64 @@
     1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.6 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.7 +
     1.8 +#include "nsIRequest.idl"
     1.9 +
    1.10 +interface nsIInputStream;
    1.11 +interface nsIOutputStream;
    1.12 +interface nsIRequestObserver;
    1.13 +interface nsIEventTarget;
    1.14 +
    1.15 +// You should prefer nsIAsyncStreamCopier2
    1.16 +[scriptable, uuid(5a19ca27-e041-4aca-8287-eb248d4c50c0)]
    1.17 +interface nsIAsyncStreamCopier : nsIRequest
    1.18 +{
    1.19 +    /**
    1.20 +     * Initialize the stream copier.
    1.21 +     *
    1.22 +     * @param aSource
    1.23 +     *        contains the data to be copied.
    1.24 +     * @param aSink
    1.25 +     *        specifies the destination for the data.
    1.26 +     * @param aTarget
    1.27 +     *        specifies the thread on which the copy will occur.  a null value
    1.28 +     *        is permitted and will cause the copy to occur on an unspecified
    1.29 +     *        background thread.
    1.30 +     * @param aSourceBuffered
    1.31 +     *        true if aSource implements ReadSegments.
    1.32 +     * @param aSinkBuffered
    1.33 +     *        true if aSink implements WriteSegments.
    1.34 +     * @param aChunkSize
    1.35 +     *        specifies how many bytes to read/write at a time.  this controls
    1.36 +     *        the granularity of the copying.  it should match the segment size
    1.37 +     *        of the "buffered" streams involved.
    1.38 +     * @param aCloseSource
    1.39 +     *        true if aSource should be closed after copying.
    1.40 +     * @param aCloseSink
    1.41 +     *        true if aSink should be closed after copying.
    1.42 +     *
    1.43 +     * NOTE: at least one of the streams must be buffered. If you do not know
    1.44 +     * whether your streams are buffered, you should use nsIAsyncStreamCopier2
    1.45 +     * instead.
    1.46 +     */
    1.47 +    void init(in nsIInputStream    aSource,
    1.48 +              in nsIOutputStream   aSink,
    1.49 +              in nsIEventTarget    aTarget,
    1.50 +              in boolean           aSourceBuffered,
    1.51 +              in boolean           aSinkBuffered,
    1.52 +              in unsigned long     aChunkSize,
    1.53 +              in boolean           aCloseSource,
    1.54 +              in boolean           aCloseSink);
    1.55 +
    1.56 +    /**
    1.57 +     * asyncCopy triggers the start of the copy.  The observer will be notified
    1.58 +     * when the copy completes.
    1.59 +     *
    1.60 +     * @param aObserver
    1.61 +     *        receives notifications.
    1.62 +     * @param aObserverContext
    1.63 +     *        passed to observer methods.
    1.64 +     */
    1.65 +    void asyncCopy(in nsIRequestObserver   aObserver,
    1.66 +                   in nsISupports          aObserverContext);
    1.67 +};

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