Back to index

lightning-sunbird  0.9+nobinonly
nsAsyncStreamCopier.h
Go to the documentation of this file.
00001 /* ***** BEGIN LICENSE BLOCK *****
00002  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00003  *
00004  * The contents of this file are subject to the Mozilla Public License Version
00005  * 1.1 (the "License"); you may not use this file except in compliance with
00006  * the License. You may obtain a copy of the License at
00007  * http://www.mozilla.org/MPL/
00008  *
00009  * Software distributed under the License is distributed on an "AS IS" basis,
00010  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00011  * for the specific language governing rights and limitations under the
00012  * License.
00013  *
00014  * The Original Code is Mozilla.
00015  *
00016  * The Initial Developer of the Original Code is
00017  * Netscape Communications Corporation.
00018  * Portions created by the Initial Developer are Copyright (C) 2002
00019  * the Initial Developer. All Rights Reserved.
00020  *
00021  * Contributor(s):
00022  *   Darin Fisher <darin@netscape.com>
00023  *
00024  * Alternatively, the contents of this file may be used under the terms of
00025  * either the GNU General Public License Version 2 or later (the "GPL"), or
00026  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00027  * in which case the provisions of the GPL or the LGPL are applicable instead
00028  * of those above. If you wish to allow use of your version of this file only
00029  * under the terms of either the GPL or the LGPL, and not to allow others to
00030  * use your version of this file under the terms of the MPL, indicate your
00031  * decision by deleting the provisions above and replace them with the notice
00032  * and other provisions required by the GPL or the LGPL. If you do not delete
00033  * the provisions above, a recipient may use your version of this file under
00034  * the terms of any one of the MPL, the GPL or the LGPL.
00035  *
00036  * ***** END LICENSE BLOCK ***** */
00037 
00038 #ifndef nsAsyncStreamCopier_h__
00039 #define nsAsyncStreamCopier_h__
00040 
00041 #include "nsIAsyncStreamCopier.h"
00042 #include "nsIAsyncInputStream.h"
00043 #include "nsIAsyncOutputStream.h"
00044 #include "nsIRequestObserver.h"
00045 #include "nsStreamUtils.h"
00046 #include "nsCOMPtr.h"
00047 #include "prlock.h"
00048 
00049 //-----------------------------------------------------------------------------
00050 
00051 class nsAsyncStreamCopier : public nsIAsyncStreamCopier
00052 {
00053 public:
00054     NS_DECL_ISUPPORTS
00055     NS_DECL_NSIREQUEST
00056     NS_DECL_NSIASYNCSTREAMCOPIER
00057 
00058     nsAsyncStreamCopier();
00059     virtual ~nsAsyncStreamCopier();
00060 
00061     //-------------------------------------------------------------------------
00062     // these methods may be called on any thread
00063 
00064     PRBool IsComplete(nsresult *status = nsnull);
00065     void   Complete(nsresult status);
00066 
00067 private:
00068 
00069     static void OnAsyncCopyComplete(void *, nsresult);
00070 
00071     nsCOMPtr<nsIInputStream>       mSource;
00072     nsCOMPtr<nsIOutputStream>      mSink;
00073 
00074     nsCOMPtr<nsIRequestObserver>   mObserver;
00075     nsCOMPtr<nsISupports>          mObserverContext;
00076 
00077     nsCOMPtr<nsIEventTarget>       mTarget;
00078 
00079     PRLock                        *mLock;
00080 
00081     nsAsyncCopyMode                mMode;
00082     PRUint32                       mChunkSize;
00083     nsresult                       mStatus;
00084     PRPackedBool                   mIsPending;
00085 };
00086 
00087 #endif // !nsAsyncStreamCopier_h__