mirror of
https://github.com/RetroShare/RetroShare.git
synced 2025-01-24 14:23:36 -05:00
5ea8cfb67d
* Compilation for FreeBSD.
* Notes that MT is not cryptographically secure.
* modified sorting of DHT Window.
Only one change that I didn't commit:
bitdht {
- LIBS += ../../libbitdht/src/lib/libbitdht.a
- PRE_TARGETDEPS *= ../../libbitdht/src/lib/libbitdht.a
+ LIBS += ../../libbitdht/src/libbitdht.a
+ PRE_TARGETDEPS *= ../../libbitdht/src/libbitdht.a
}
As this would have broken compilation on the other platforms.
git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@4619 b45a01b8-16f6-495d-af2f-9b41ad6348cc
64 lines
2.0 KiB
C++
64 lines
2.0 KiB
C++
/****************************************************************
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* RetroShare is distributed under the following license:
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*
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* Copyright (C) 2010 Cyril Soler <csoler@users.sourceforge.net>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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****************************************************************/
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#pragma once
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// RSRandom contains a random number generator that is
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// - thread safe
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// - system independant
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// - fast
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// - NOT CRYPTOGRAPHICALLY SAFE
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// - DO NOT USE FOR ANYTHING REQUIRING STRONG RANDOMNESS
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//
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// The implementation is adapted from the Mersenne Twister page of Wikipedia.
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//
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// http://en.wikipedia.org/wiki/Mersenne_twister
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#include <vector>
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#include <util/rsthreads.h>
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class RSRandom
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{
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public:
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static uint32_t random_u32() ;
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static uint64_t random_u64() ;
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static float random_f32() ;
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static double random_f64() ;
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static bool seed(uint32_t s) ;
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static std::string random_alphaNumericString(uint32_t length) ;
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private:
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static RsMutex rndMtx ;
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static const uint32_t N = 624;
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static const uint32_t M = 397;
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static const uint32_t MATRIX_A = 0x9908b0dfUL;
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static const uint32_t UMASK = 0x80000000UL;
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static const uint32_t LMASK = 0x7fffffffUL;
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static void locked_next_state() ;
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static uint32_t index ;
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static std::vector<uint32_t> MT ;
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};
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