ossp-pkg/as/as-gui/as_rand.h
//
// OSSP asgui - Accounting system graphical user interface
// Copyright (c) 2002-2004 The OSSP Project (http://www.ossp.org/)
// Copyright (c) 2002-2004 Ralf S. Engelschall <rse@engelschall.com>
// Copyright (c) 2002-2004 Michael Schloh von Bennewitz <michael@schloh.com>
// Copyright (c) 2002-2004 Cable & Wireless Telecommunications Services GmbH
//
// This file is part of OSSP asgui, an accounting system graphical user
// interface which can be found at http://www.ossp.org/pkg/tool/asgui/.
//
// Permission to use, copy, modify, and distribute this software for
// any purpose with or without fee is hereby granted, provided that
// the above copyright notice and this permission notice appear in all
// copies.
//
// THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
// IN NO EVENT SHALL THE AUTHORS AND COPYRIGHT HOLDERS AND THEIR
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
// USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
// OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
// SUCH DAMAGE.
//
// as_rand.h: ISO C++ interface
//
#ifndef RAND_H
#define RAND_H
#ifdef HAVE_CONFIG_H
#include "ac_config.h"
#endif
namespace AS {
//
// Generates (multiple) random numbers, using the
// system standard random devices or a choppy
// home made algorythm if no devices exist
//
class Rand
{
private:
int nFd; // File descriptor of random device
public:
Rand(void); // Constructor
~Rand(void); // Destructor
void genData(void *, int); // Generates a number
private:
void openDevice(void); // Opens the random device
void closeDevice(void); // Closes the random device
};
}
#endif // RAND_H
