103 lines
3.5 KiB
C++
103 lines
3.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Google Inc.
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* Portions created by the Initial Developer are Copyright (C) 2005
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Darin Fisher <darin@meer.net>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsInputStreamChannel.h"
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//-----------------------------------------------------------------------------
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// nsInputStreamChannel
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nsresult
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nsInputStreamChannel::OpenContentStream(PRBool async, nsIInputStream **result,
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nsIChannel** channel)
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{
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NS_ENSURE_TRUE(mContentStream, NS_ERROR_NOT_INITIALIZED);
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// If content length is unknown, then we must guess. In this case, we assume
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// the stream can tell us. If the stream is a pipe, then this will not work.
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PRInt64 len = ContentLength64();
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if (len < 0) {
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PRUint32 avail;
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nsresult rv = mContentStream->Available(&avail);
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if (rv == NS_BASE_STREAM_CLOSED) {
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// This just means there's nothing in the stream
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avail = 0;
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} else if (NS_FAILED(rv)) {
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return rv;
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}
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SetContentLength64(avail);
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}
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EnableSynthesizedProgressEvents(PR_TRUE);
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NS_ADDREF(*result = mContentStream);
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return NS_OK;
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}
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//-----------------------------------------------------------------------------
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// nsInputStreamChannel::nsISupports
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NS_IMPL_ISUPPORTS_INHERITED1(nsInputStreamChannel,
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nsBaseChannel,
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nsIInputStreamChannel)
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//-----------------------------------------------------------------------------
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// nsInputStreamChannel::nsIInputStreamChannel
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NS_IMETHODIMP
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nsInputStreamChannel::SetURI(nsIURI *uri)
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{
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NS_ENSURE_TRUE(!URI(), NS_ERROR_ALREADY_INITIALIZED);
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nsBaseChannel::SetURI(uri);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsInputStreamChannel::GetContentStream(nsIInputStream **stream)
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{
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NS_IF_ADDREF(*stream = mContentStream);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsInputStreamChannel::SetContentStream(nsIInputStream *stream)
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{
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NS_ENSURE_TRUE(!mContentStream, NS_ERROR_ALREADY_INITIALIZED);
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mContentStream = stream;
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return NS_OK;
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}
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