87 lines
3.6 KiB
C++
Executable File
87 lines
3.6 KiB
C++
Executable File
/*****************************************************************************
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* PokerTH - The open source texas holdem engine *
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* Copyright (C) 2006-2012 Felix Hammer, Florian Thauer, Lothar May *
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* *
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* This program is free software: you can redistribute it and/or modify *
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* it under the terms of the GNU Affero General Public License as *
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* published by the Free Software Foundation, either version 3 of the *
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* 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 Affero General Public License for more details. *
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* *
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* You should have received a copy of the GNU Affero General Public License *
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* along with this program. If not, see <http://www.gnu.org/licenses/>. *
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* *
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* *
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* Additional permission under GNU AGPL version 3 section 7 *
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* *
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* If you modify this program, or any covered work, by linking or *
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* combining it with the OpenSSL project's OpenSSL library (or a *
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* modified version of that library), containing parts covered by the *
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* terms of the OpenSSL or SSLeay licenses, the authors of PokerTH *
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* (Felix Hammer, Florian Thauer, Lothar May) grant you additional *
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* permission to convey the resulting work. *
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* Corresponding Source for a non-source form of such a combination *
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* shall include the source code for the parts of OpenSSL used as well *
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* as that of the covered work. *
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*****************************************************************************/
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#define NOMINMAX // for Windows
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#ifdef ANDROID
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#error This file is not for android.
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#endif
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#include "tools.h"
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#include <core/loghelper.h>
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#include <core/openssl_wrapper.h>
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#include <boost/thread.hpp>
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#include <boost/nondet_random.hpp>
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#include <boost/random/uniform_int.hpp>
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#include <boost/random/variate_generator.hpp>
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using namespace std;
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boost::thread_specific_ptr<boost::random_device> g_rand_state;
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struct nondet_rng : std::unary_function<unsigned, unsigned> {
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boost::random_device &_state;
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unsigned operator()(unsigned i)
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{
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boost::uniform_int<> rng(0, i - 1);
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return rng(_state);
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}
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nondet_rng(boost::random_device &state) : _state(state) {}
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};
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static inline void InitRandState()
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{
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if (!g_rand_state.get()) {
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g_rand_state.reset(new boost::random_device);
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}
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}
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void Tools::ShuffleArrayNonDeterministic(int *inout, unsigned count)
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{
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InitRandState();
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nondet_rng rand(*g_rand_state);
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random_shuffle(&inout[0], &inout[count], rand);
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}
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void Tools::GetRand(int minValue, int maxValue, unsigned count, int *out)
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{
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InitRandState();
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boost::uniform_int<> dist(minValue, maxValue);
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boost::variate_generator<boost::random_device&, boost::uniform_int<> > gen(*g_rand_state, dist);
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int *startPtr = out;
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for (unsigned i = 0; i < count; i++) {
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*startPtr++ = gen();
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}
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}
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