initial revision

1 files changed, 67 insertions, 0 deletions

diff --git a/pwmanager/pwmanager/randomizer.h b/pwmanager/pwmanager/randomizer.h
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+/***************************************************************************
+ *                                                                         *
+ *   copyright (C) 2003, 2004 by Michael Buesch                            *
+ *   email: mbuesch@freenet.de                                             *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License version 2        *
+ *   as published by the Free Software Foundation.                         *
+ *                                                                         *
+ ***************************************************************************/
+
+/***************************************************************************
+ * copyright (C) 2004 by Ulf Schenk
+ * This file is originaly based on version 1.0.1 of pwmanager
+ * and was modified to run on embedded devices that run microkde
+ *
+ * $Id$
+ **************************************************************************/  
+
+#ifndef RANDOMIZER_H
+#define RANDOMIZER_H
+
+#include "pwmexception.h"
+
+#include <stdio.h>
+
+/** simple randomizer 
+  * This class is *NOT* reentrant save!
+  */
+class Randomizer
+{
+public:
+	Randomizer();
+	~Randomizer();
+
+	static Randomizer * obj()
+		{
+			PWM_ASSERT(rndObj);
+			return rndObj;
+		}
+	static void init()
+		{
+			PWM_ASSERT(!rndObj);
+			rndObj = new Randomizer;
+		}
+	static void cleanup()
+		{
+			delete_ifnot_null(rndObj);
+		}
+
+	/** generate random char */
+	char genRndChar();
+	/** generate random int */
+	int genRndInt();
+	/** generate random unsigned int */
+	unsigned int genRndUInt();
+
+protected:
+	/** random-device-node (if available. Otherwise NULL) */
+	FILE *rndDev;
+	/** seed value for fallback - rand_r() */
+	unsigned int seed;
+	/** static Randomier object returned by obj() */
+	static Randomizer *rndObj;
+};
+
+#endif