Drizzled Public API Documentation

ut0rnd.h
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00001 /*****************************************************************************
00002 
00003 Copyright (C) 1994, 2009, Innobase Oy. All Rights Reserved.
00004 
00005 This program is free software; you can redistribute it and/or modify it under
00006 the terms of the GNU General Public License as published by the Free Software
00007 Foundation; version 2 of the License.
00008 
00009 This program is distributed in the hope that it will be useful, but WITHOUT
00010 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
00011 FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
00012 
00013 You should have received a copy of the GNU General Public License along with
00014 this program; if not, write to the Free Software Foundation, Inc., 51 Franklin
00015 St, Fifth Floor, Boston, MA 02110-1301 USA
00016 
00017 *****************************************************************************/
00018 
00019 /******************************************************************/
00026 #pragma once
00027 #ifndef ut0rnd_h
00028 #define ut0rnd_h
00029 
00030 #include "univ.i"
00031 
00032 #include "ut0byte.h"
00033 
00036 #define UT_END_OF_FIELD   257
00037 
00038 /********************************************************/
00040 UNIV_INLINE
00041 void
00042 ut_rnd_set_seed(
00043 /*============*/
00044   ulint  seed);    
00045 /********************************************************/
00048 UNIV_INLINE
00049 ulint
00050 ut_rnd_gen_next_ulint(
00051 /*==================*/
00052   ulint rnd); 
00053 /*********************************************************/
00059 UNIV_INLINE
00060 ulint
00061 ut_rnd_gen_ulint(void);
00062 /*==================*/
00063 /********************************************************/
00066 UNIV_INLINE
00067 ulint
00068 ut_rnd_interval(
00069 /*============*/
00070   ulint low,  
00071   ulint high);  
00072 /*********************************************************/
00075 UNIV_INLINE
00076 ibool
00077 ut_rnd_gen_ibool(void);
00078 /*=================*/
00079 /*******************************************************/
00084 UNIV_INLINE
00085 ulint
00086 ut_hash_ulint(
00087 /*==========*/
00088   ulint  key,   
00089   ulint  table_size); 
00090 /*************************************************************/
00093 UNIV_INLINE
00094 ulint
00095 ut_fold_ulint_pair(
00096 /*===============*/
00097   ulint n1, 
00098   ulint n2) 
00099   __attribute__((const));
00100 /*************************************************************/
00103 UNIV_INLINE
00104 ulint
00105 ut_fold_ull(
00106 /*========*/
00107   ib_uint64_t d)  
00108   __attribute__((const));
00109 /*************************************************************/
00112 UNIV_INLINE
00113 ulint
00114 ut_fold_string(
00115 /*===========*/
00116   const char* str)  
00117   __attribute__((pure));
00118 /*************************************************************/
00121 UNIV_INLINE
00122 ulint
00123 ut_fold_binary(
00124 /*===========*/
00125   const byte* str,  
00126   ulint   len)  
00127   __attribute__((pure));
00128 /***********************************************************/
00132 UNIV_INTERN
00133 ulint
00134 ut_find_prime(
00135 /*==========*/
00136   ulint n)  
00137   __attribute__((const));
00138 
00139 
00140 #ifndef UNIV_NONINL
00141 #include "ut0rnd.ic"
00142 #endif
00143 
00144 #endif