78 lines
1.9 KiB
C++
78 lines
1.9 KiB
C++
//
|
|
// VMime library (http://vmime.sourceforge.net)
|
|
// Copyright (C) 2002-2004 Vincent Richard <vincent@vincent-richard.net>
|
|
//
|
|
// This program is free software; you can redistribute it and/or
|
|
// modify it under the terms of the GNU General Public License as
|
|
// published by the Free Software Foundation; either version 2 of
|
|
// the License, or (at your option) any later version.
|
|
//
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
// General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with this program; if not, write to the Free Software
|
|
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
//
|
|
|
|
#ifndef VMIME_UTILITY_RANDOM_HPP_INCLUDED
|
|
#define VMIME_UTILITY_RANDOM_HPP_INCLUDED
|
|
|
|
|
|
#include "types.hpp"
|
|
|
|
|
|
namespace vmime {
|
|
namespace utility {
|
|
|
|
|
|
/** Pseudo-random number generator.
|
|
*/
|
|
|
|
class random
|
|
{
|
|
public:
|
|
|
|
/** Return a new random number.
|
|
*
|
|
* @return random number
|
|
*/
|
|
static const unsigned int getNext();
|
|
|
|
/** Return the current time as a number (may be used to
|
|
* build "random" strings).
|
|
*
|
|
* @return time as a number
|
|
*/
|
|
static const unsigned int getTime();
|
|
|
|
/** Return the current process number (may be user to
|
|
* build "random" strings).
|
|
*
|
|
* @return process number
|
|
*/
|
|
static const unsigned int getProcess();
|
|
|
|
/** Return a random character string with the specified length.
|
|
*
|
|
* @param length length of the string to generate
|
|
* @param randomChars list of characters to use
|
|
* @return random string
|
|
*/
|
|
static const string getString(const int length, const string& randomChars
|
|
= "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789");
|
|
|
|
protected:
|
|
|
|
static unsigned int m_next;
|
|
};
|
|
|
|
|
|
} // utility
|
|
} // vmime
|
|
|
|
|
|
#endif // VMIME_UTILITY_RANDOM_HPP_INCLUDED
|