netwerk/base/src/nsAsyncStreamCopier.h

   1 /* ***** BEGIN LICENSE BLOCK *****
   2  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
   3  *
   4  * The contents of this file are subject to the Mozilla Public License Version
   5  * 1.1 (the "License"); you may not use this file except in compliance with
   6  * the License. You may obtain a copy of the License at
   7  * http://www.mozilla.org/MPL/
   8  *
   9  * Software distributed under the License is distributed on an "AS IS" basis,
  10  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  11  * for the specific language governing rights and limitations under the
  12  * License.
  13  *
  14  * The Original Code is Mozilla.
  15  *
  16  * The Initial Developer of the Original Code is
  17  * Netscape Communications Corporation.
  18  * Portions created by the Initial Developer are Copyright (C) 2002
  19  * the Initial Developer. All Rights Reserved.
  20  *
  21  * Contributor(s):
  22  *   Darin Fisher <darin@netscape.com>
  23  *
  24  * Alternatively, the contents of this file may be used under the terms of
  25  * either the GNU General Public License Version 2 or later (the "GPL"), or
  26  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  27  * in which case the provisions of the GPL or the LGPL are applicable instead
  28  * of those above. If you wish to allow use of your version of this file only
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  33  * the provisions above, a recipient may use your version of this file under
  34  * the terms of any one of the MPL, the GPL or the LGPL.
  35  *
  36  * ***** END LICENSE BLOCK ***** */
  37
  38 #ifndef nsAsyncStreamCopier_h__
  39 #define nsAsyncStreamCopier_h__
  40
  41 #include "nsIAsyncStreamCopier.h"
  42 #include "nsIAsyncInputStream.h"
  43 #include "nsIAsyncOutputStream.h"
  44 #include "nsIRequestObserver.h"
  45 #include "nsStreamUtils.h"
  46 #include "nsCOMPtr.h"
  47 #include "prlock.h"
  48
  49 //-----------------------------------------------------------------------------
  50
  51 class nsAsyncStreamCopier : public nsIAsyncStreamCopier
  52 {
  53 public:
  54     NS_DECL_ISUPPORTS
  55     NS_DECL_NSIREQUEST
  56     NS_DECL_NSIASYNCSTREAMCOPIER
  57
  58     nsAsyncStreamCopier();
  59     virtual ~nsAsyncStreamCopier();
  60
  61     //-------------------------------------------------------------------------
  62     // these methods may be called on any thread
  63
  64     PRBool IsComplete(nsresult *status = nsnull);
  65     void   Complete(nsresult status);
  66
  67 private:
  68
  69     static void OnAsyncCopyComplete(void *, nsresult);
  70
  71     nsCOMPtr<nsIInputStream>       mSource;
  72     nsCOMPtr<nsIOutputStream>      mSink;
  73
  74     nsCOMPtr<nsIRequestObserver>   mObserver;
  75     nsCOMPtr<nsISupports>          mObserverContext;
  76
  77     nsCOMPtr<nsIEventTarget>       mTarget;
  78
  79     PRLock                        *mLock;
  80
  81     nsAsyncCopyMode                mMode;
  82     PRUint32                       mChunkSize;
  83     nsresult                       mStatus;
  84     PRPackedBool                   mIsPending;
  85 };
  86
  87 #endif // !nsAsyncStreamCopier_h__