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78 lines
2.6 KiB
C++
78 lines
2.6 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* 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 "nsSimpleStreamListener.h"
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//
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//----------------------------------------------------------------------------
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// nsISupports implementation...
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//----------------------------------------------------------------------------
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//
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NS_IMPL_ISUPPORTS(nsSimpleStreamListener,
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nsISimpleStreamListener,
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nsIStreamListener,
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nsIRequestObserver)
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//
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//----------------------------------------------------------------------------
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// nsIRequestObserver implementation...
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//----------------------------------------------------------------------------
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//
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NS_IMETHODIMP
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nsSimpleStreamListener::OnStartRequest(nsIRequest *aRequest,
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nsISupports *aContext)
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{
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return mObserver ?
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mObserver->OnStartRequest(aRequest, aContext) : NS_OK;
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}
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NS_IMETHODIMP
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nsSimpleStreamListener::OnStopRequest(nsIRequest* request,
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nsISupports *aContext,
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nsresult aStatus)
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{
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return mObserver ?
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mObserver->OnStopRequest(request, aContext, aStatus) : NS_OK;
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}
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//
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//----------------------------------------------------------------------------
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// nsIStreamListener implementation...
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//----------------------------------------------------------------------------
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//
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NS_IMETHODIMP
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nsSimpleStreamListener::OnDataAvailable(nsIRequest* request,
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nsISupports *aContext,
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nsIInputStream *aSource,
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uint64_t aOffset,
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uint32_t aCount)
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{
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uint32_t writeCount;
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nsresult rv = mSink->WriteFrom(aSource, aCount, &writeCount);
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//
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// Equate zero bytes read and NS_SUCCEEDED to stopping the read.
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//
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if (NS_SUCCEEDED(rv) && (writeCount == 0))
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return NS_BASE_STREAM_CLOSED;
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return rv;
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}
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//
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//----------------------------------------------------------------------------
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// nsISimpleStreamListener implementation...
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//----------------------------------------------------------------------------
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//
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NS_IMETHODIMP
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nsSimpleStreamListener::Init(nsIOutputStream *aSink,
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nsIRequestObserver *aObserver)
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{
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NS_PRECONDITION(aSink, "null output stream");
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mSink = aSink;
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mObserver = aObserver;
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return NS_OK;
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}
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