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lightning-sunbird  0.9+nobinonly
nsEntropyCollector.h
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00001 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
00002 /* ***** BEGIN LICENSE BLOCK *****
00003  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00004  *
00005  * The contents of this file are subject to the Mozilla Public License Version
00006  * 1.1 (the "License"); you may not use this file except in compliance with
00007  * the License. You may obtain a copy of the License at
00008  * http://www.mozilla.org/MPL/
00009  *
00010  * Software distributed under the License is distributed on an "AS IS" basis,
00011  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00012  * for the specific language governing rights and limitations under the
00013  * License.
00014  *
00015  * The Original Code is mozilla.org code.
00016  *
00017  * The Initial Developer of the Original Code is
00018  * Netscape Communications Corporation.
00019  * Portions created by the Initial Developer are Copyright (C) 2001
00020  * the Initial Developer. All Rights Reserved.
00021  *
00022  * Contributor(s):
00023  *   L. David Baron <dbaron@dbaron.org> (original author)
00024  *   Kai Engert <kaie@netscape.com>
00025  *
00026  * Alternatively, the contents of this file may be used under the terms of
00027  * either the GNU General Public License Version 2 or later (the "GPL"), or
00028  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00029  * in which case the provisions of the GPL or the LGPL are applicable instead
00030  * of those above. If you wish to allow use of your version of this file only
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00037  *
00038  * ***** END LICENSE BLOCK ***** */
00039 #ifndef nsEntropyCollector_h___
00040 #define nsEntropyCollector_h___
00041 
00042 #include "nsIEntropyCollector.h"
00043 #include "nsIBufEntropyCollector.h"
00044 #include "nsCOMPtr.h"
00045 
00046 #define NS_ENTROPYCOLLECTOR_CID \
00047  { /* 34587f4a-be18-43c0-9112-b782b08c0add */       \
00048   0x34587f4a, 0xbe18, 0x43c0,                       \
00049  {0x91, 0x12, 0xb7, 0x82, 0xb0, 0x8c, 0x0a, 0xdd} }
00050 
00051 class nsEntropyCollector : public nsIBufEntropyCollector
00052 {
00053   public:
00054     nsEntropyCollector();
00055     virtual ~nsEntropyCollector();
00056 
00057     NS_DECL_ISUPPORTS
00058     NS_DECL_NSIENTROPYCOLLECTOR
00059     NS_DECL_NSIBUFENTROPYCOLLECTOR
00060 
00061     enum { entropy_buffer_size = 1024 };
00062 
00063   protected:
00064     unsigned char mEntropyCache[entropy_buffer_size];
00065     PRInt32 mBytesCollected;
00066     unsigned char *mWritePointer;
00067     nsCOMPtr<nsIEntropyCollector> mForwardTarget;
00068 };
00069 
00070 #endif /* !defined nsEntropyCollector_h__ */