michael@0: /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "nsSimpleStreamListener.h"
michael@0: 
michael@0: //
michael@0: //----------------------------------------------------------------------------
michael@0: // nsISupports implementation...
michael@0: //----------------------------------------------------------------------------
michael@0: //
michael@0: NS_IMPL_ISUPPORTS(nsSimpleStreamListener,
michael@0:                   nsISimpleStreamListener,
michael@0:                   nsIStreamListener,
michael@0:                   nsIRequestObserver)
michael@0: 
michael@0: //
michael@0: //----------------------------------------------------------------------------
michael@0: // nsIRequestObserver implementation...
michael@0: //----------------------------------------------------------------------------
michael@0: //
michael@0: NS_IMETHODIMP
michael@0: nsSimpleStreamListener::OnStartRequest(nsIRequest *aRequest,
michael@0:                                        nsISupports *aContext)
michael@0: {
michael@0:     return mObserver ?
michael@0:         mObserver->OnStartRequest(aRequest, aContext) : NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsSimpleStreamListener::OnStopRequest(nsIRequest* request,
michael@0:                                       nsISupports *aContext,
michael@0:                                       nsresult aStatus)
michael@0: {
michael@0:     return mObserver ?
michael@0:         mObserver->OnStopRequest(request, aContext, aStatus) : NS_OK;
michael@0: }
michael@0: 
michael@0: //
michael@0: //----------------------------------------------------------------------------
michael@0: // nsIStreamListener implementation...
michael@0: //----------------------------------------------------------------------------
michael@0: //
michael@0: NS_IMETHODIMP
michael@0: nsSimpleStreamListener::OnDataAvailable(nsIRequest* request,
michael@0:                                         nsISupports *aContext,
michael@0:                                         nsIInputStream *aSource,
michael@0:                                         uint64_t aOffset,
michael@0:                                         uint32_t aCount)
michael@0: {
michael@0:     uint32_t writeCount;
michael@0:     nsresult rv = mSink->WriteFrom(aSource, aCount, &writeCount);
michael@0:     //
michael@0:     // Equate zero bytes read and NS_SUCCEEDED to stopping the read.
michael@0:     //
michael@0:     if (NS_SUCCEEDED(rv) && (writeCount == 0))
michael@0:         return NS_BASE_STREAM_CLOSED;
michael@0:     return rv;
michael@0: }
michael@0: 
michael@0: //
michael@0: //----------------------------------------------------------------------------
michael@0: // nsISimpleStreamListener implementation...
michael@0: //----------------------------------------------------------------------------
michael@0: //
michael@0: NS_IMETHODIMP
michael@0: nsSimpleStreamListener::Init(nsIOutputStream *aSink,
michael@0:                              nsIRequestObserver *aObserver)
michael@0: {
michael@0:     NS_PRECONDITION(aSink, "null output stream");
michael@0: 
michael@0:     mSink = aSink;
michael@0:     mObserver = aObserver;
michael@0: 
michael@0:     return NS_OK;
michael@0: }