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/*
* Copyright (C) 2007-2013 Xagasoft, All rights reserved.
*
* This file is part of the libbu++ library and is released under the
* terms of the license contained in the file LICENSE.
*/
#ifndef BU_RANDOM_SYSTEM_H
#define BU_RANDOM_SYSTEM_H
#include "bu/randombase.h"
namespace Bu
{
class File;
/**
* Access to operating system provided random number generation. On linux
* this will provide access to /dev/random or /dev/urandom depending on
* weather Fast or Good is selected. On Linux systems Good random number
* generation can block while organic sources are use to gather entropy, so
* Fast is the default, it will always provide a result.
*
* On Windows this uses the Windows system cryptographic level random number
* generation services. Or at least, it will when I get to it. Sorry.
*/
class RandomSystem : public RandomBase
{
public:
enum Type
{
Fast,
Good
};
RandomSystem( Type eType=Fast );
virtual ~RandomSystem();
virtual void seed( int32_t iSeed );
virtual int32_t rand();
private:
Type eType;
File *pSrc;
};
};
#endif
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