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83 lines
2.8 KiB
C++
83 lines
2.8 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is Mozilla Communicator client code, released
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* March 31, 1998.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998-1999 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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* Scott Furman, fur@netscape.com
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*/
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#ifndef _nsCacheEntryChannel_h_
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#define _nsCacheEntryChannel_h_
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#include "nsCOMPtr.h"
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#include "nsIChannel.h"
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#include "nsCachedNetData.h"
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#include "nsILoadGroup.h"
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class nsIStreamListener;
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// A proxy for an nsIChannel, useful when only a few nsIChannel
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// methods must be overridden
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class nsChannelProxy : public nsIChannel {
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public:
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NS_FORWARD_NSICHANNEL(mChannel->)
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NS_FORWARD_NSIREQUEST(mChannel->)
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protected:
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nsChannelProxy(nsIChannel* aChannel):mChannel(aChannel) {};
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virtual ~nsChannelProxy() {};
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nsCOMPtr<nsIChannel> mChannel;
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};
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// Override several nsIChannel methods so that they interact with the cache manager
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class nsCacheEntryChannel : public nsChannelProxy {
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public:
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NS_DECL_ISUPPORTS
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NS_IMETHOD OpenOutputStream(PRUint32 aStartPosition, nsIOutputStream* *aOutputStream);
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NS_IMETHOD OpenInputStream(PRUint32 aStartPosition, PRInt32 aReadCount,
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nsIInputStream* *aInputStream);
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NS_IMETHOD AsyncRead(PRUint32 aStartPosition, PRInt32 aReadCount,
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nsISupports *aContext, nsIStreamListener *aListener);
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NS_IMETHOD AsyncWrite(nsIInputStream *aFromStream, PRUint32 aStartPosition,
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PRInt32 aWriteCount, nsISupports *aContext,
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nsIStreamObserver *aObserver);
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NS_IMETHOD GetLoadAttributes(nsLoadFlags *aLoadAttributes);
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NS_IMETHOD SetLoadAttributes(nsLoadFlags aLoadAttributes);
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NS_IMETHOD GetLoadGroup(nsILoadGroup* *aLoadGroup);
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NS_IMETHOD GetURI(nsIURI * *aURI);
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NS_IMETHOD GetOriginalURI(nsIURI * *aURI);
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protected:
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nsCacheEntryChannel(nsCachedNetData* aCacheEntry, nsIChannel* aChannel, nsILoadGroup* aLoadGroup);
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virtual ~nsCacheEntryChannel();
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friend class nsCachedNetData;
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private:
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nsCOMPtr<nsCachedNetData> mCacheEntry;
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nsCOMPtr<nsILoadGroup> mLoadGroup;
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nsCOMPtr<nsIChannel> mProxyChannel;
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nsLoadFlags mLoadAttributes;
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};
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#endif // _nsCacheEntryChannel_h_
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