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ut0rnd.h
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1 /*****************************************************************************
2 
3 Copyright (c) 1994, 2009, Oracle and/or its affiliates. All Rights Reserved.
4 
5 This program is free software; you can redistribute it and/or modify it under
6 the terms of the GNU General Public License as published by the Free Software
7 Foundation; version 2 of the License.
8 
9 This program is distributed in the hope that it will be useful, but WITHOUT
10 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
11 FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
12 
13 You should have received a copy of the GNU General Public License along with
14 this program; if not, write to the Free Software Foundation, Inc.,
15 51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA
16 
17 *****************************************************************************/
18 
19 /******************************************************************/
26 #ifndef ut0rnd_h
27 #define ut0rnd_h
28 
29 #include "univ.i"
30 
31 #ifndef UNIV_INNOCHECKSUM
32 
33 #include "ut0byte.h"
34 
37 #define UT_END_OF_FIELD 257
38 
39 /********************************************************/
41 UNIV_INLINE
42 void
43 ut_rnd_set_seed(
44 /*============*/
45  ulint seed);
46 /********************************************************/
49 UNIV_INLINE
50 ulint
51 ut_rnd_gen_next_ulint(
52 /*==================*/
53  ulint rnd);
54 /*********************************************************/
60 UNIV_INLINE
61 ulint
62 ut_rnd_gen_ulint(void);
63 /*==================*/
64 /********************************************************/
67 UNIV_INLINE
68 ulint
69 ut_rnd_interval(
70 /*============*/
71  ulint low,
72  ulint high);
73 /*********************************************************/
76 UNIV_INLINE
77 ibool
78 ut_rnd_gen_ibool(void);
79 /*=================*/
80 /*******************************************************/
85 UNIV_INLINE
86 ulint
87 ut_hash_ulint(
88 /*==========*/
89  ulint key,
90  ulint table_size);
91 /*************************************************************/
94 UNIV_INLINE
95 ulint
96 ut_fold_ull(
97 /*========*/
98  ib_uint64_t d)
99  __attribute__((const));
100 /*************************************************************/
103 UNIV_INLINE
104 ulint
105 ut_fold_string(
106 /*===========*/
107  const char* str)
108  __attribute__((pure));
109 /***********************************************************/
113 UNIV_INTERN
114 ulint
115 ut_find_prime(
116 /*==========*/
117  ulint n)
118  __attribute__((const));
119 
120 #endif /* !UNIV_INNOCHECKSUM */
121 
122 /*************************************************************/
125 UNIV_INLINE
126 ulint
127 ut_fold_ulint_pair(
128 /*===============*/
129  ulint n1,
130  ulint n2)
131  __attribute__((const));
132 /*************************************************************/
135 UNIV_INLINE
136 ulint
137 ut_fold_binary(
138 /*===========*/
139  const byte* str,
140  ulint len)
141  __attribute__((pure));
142 
143 
144 #ifndef UNIV_NONINL
145 #include "ut0rnd.ic"
146 #endif
147 
148 #endif