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pjproject-2.11.1/pjlib/include/pj/rand.h

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+/* $Id$ */
+/* 
+ * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com)
+ * Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org>
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 
+ */
+#ifndef __PJ_RAND_H__
+#define __PJ_RAND_H__
+
+/**
+ * @file rand.h
+ * @brief Random Number Generator.
+ */
+
+#include <pj/config.h>
+
+PJ_BEGIN_DECL
+
+
+/**
+ * @defgroup PJ_RAND Random Number Generator
+ * @ingroup PJ_MISC
+ * @{
+ * This module contains functions for generating random numbers.
+ * This abstraction is needed not only because not all platforms have
+ * \a rand() and \a srand(), but also on some platforms \a rand()
+ * only has 16-bit randomness, which is not good enough.
+ */
+
+/**
+ * Put in seed to random number generator.
+ *
+ * @param seed	    Seed value.
+ */
+PJ_DECL(void) pj_srand(unsigned int seed);
+
+
+/**
+ * Generate random integer with 32bit randomness.
+ *
+ * @return a random integer.
+ */
+PJ_DECL(int) pj_rand(void);
+
+
+/** @} */
+
+
+PJ_END_DECL
+
+
+#endif	/* __PJ_RAND_H__ */
+