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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* 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
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* The Original Code is the Netscape Portable Runtime (NSPR).
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1999-2000
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* the Initial Developer. All Rights Reserved.
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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* ***** END LICENSE BLOCK ***** */
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#include <sys/types.h>
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CurrentClockTickTime(LPDWORD lpdwHigh, LPDWORD lpdwLow)
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LARGE_INTEGER liCount;
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if (!QueryPerformanceCounter(&liCount))
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*lpdwHigh = liCount.u.HighPart;
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*lpdwLow = liCount.u.LowPart;
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extern PRSize _PR_MD_GetRandomNoise( void *buf, PRSize size )
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DWORD dwHigh, dwLow, dwVal;
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CurrentClockTickTime(&dwHigh, &dwLow);
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// get the maximally changing bits first
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nBytes = sizeof(dwLow) > size ? size : sizeof(dwLow);
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memcpy((char *)buf, &dwLow, nBytes);
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nBytes = sizeof(dwHigh) > size ? size : sizeof(dwHigh);
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memcpy(((char *)buf) + n, &dwHigh, nBytes);
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// get the number of milliseconds that have elapsed since Windows started
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dwVal = GetTickCount();
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nBytes = sizeof(dwVal) > size ? size : sizeof(dwVal);
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memcpy(((char *)buf) + n, &dwVal, nBytes);
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// get the time in seconds since midnight Jan 1, 1970
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nBytes = sizeof(sTime) > size ? size : sizeof(sTime);
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memcpy(((char *)buf) + n, &sTime, nBytes);