security/manager/boot/src/nsEntropyCollector.h
author ted.mielczarek@gmail.com
Tue, 24 Jul 2007 18:06:10 -0700
changeset 3891 f410bcb3717c1b7cb953898fccd18fedc078c54d
parent 1 9b2a99adc05e53cd4010de512f50118594756650
child 99778 e6da6ece3818eed14dd357220970bfc1d3bfe6e7
permissions -rw-r--r--
bug 380542 - add a Makefile for airbag/src/client stuff. r=bsmedberg

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
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 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is mozilla.org code.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 2001
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   L. David Baron <dbaron@dbaron.org> (original author)
 *   Kai Engert <kaie@netscape.com>
 *
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 * either the GNU General Public License Version 2 or later (the "GPL"), or
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#ifndef nsEntropyCollector_h___
#define nsEntropyCollector_h___

#include "nsIEntropyCollector.h"
#include "nsIBufEntropyCollector.h"
#include "nsCOMPtr.h"

#define NS_ENTROPYCOLLECTOR_CID \
 { /* 34587f4a-be18-43c0-9112-b782b08c0add */       \
  0x34587f4a, 0xbe18, 0x43c0,                       \
 {0x91, 0x12, 0xb7, 0x82, 0xb0, 0x8c, 0x0a, 0xdd} }

class nsEntropyCollector : public nsIBufEntropyCollector
{
  public:
    nsEntropyCollector();
    virtual ~nsEntropyCollector();

    NS_DECL_ISUPPORTS
    NS_DECL_NSIENTROPYCOLLECTOR
    NS_DECL_NSIBUFENTROPYCOLLECTOR

    enum { entropy_buffer_size = 1024 };

  protected:
    unsigned char mEntropyCache[entropy_buffer_size];
    PRInt32 mBytesCollected;
    unsigned char *mWritePointer;
    nsCOMPtr<nsIEntropyCollector> mForwardTarget;
};

#endif /* !defined nsEntropyCollector_h__ */