1#ifndef MYISAMPACK_INCLUDED
2#define MYISAMPACK_INCLUDED
3
4/* Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License, version 2.0,
8 as published by the Free Software Foundation.
9
10 This program is also distributed with certain software (including
11 but not limited to OpenSSL) that is licensed under separate terms,
12 as designated in a particular file or component or in included license
13 documentation. The authors of MySQL hereby grant you an additional
14 permission to link the program and your derivative works with the
15 separately licensed software that they have included with MySQL.
16
17 This program is distributed in the hope that it will be useful,
18 but WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 GNU General Public License, version 2.0, for more details.
21
22 You should have received a copy of the GNU General Public License
23 along with this program; if not, write to the Free Software
24 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
25
26/*
27 Storing of values in high byte first order.
28
29 integer keys and file pointers are stored with high byte first to get
30 better compression
31*/
32
33/* these two are for uniformity */
34#define mi_sint1korr(A) ((int8)(*A))
35#define mi_uint1korr(A) ((uint8)(*A))
36
37#define mi_sint2korr(A) ((int16) (((int16) (((uchar*) (A))[1])) +\
38 ((int16) ((int16) ((char*) (A))[0]) << 8)))
39#define mi_sint3korr(A) ((int32) (((((uchar*) (A))[0]) & 128) ? \
40 (((uint32) 255L << 24) | \
41 (((uint32) ((uchar*) (A))[0]) << 16) |\
42 (((uint32) ((uchar*) (A))[1]) << 8) | \
43 ((uint32) ((uchar*) (A))[2])) : \
44 (((uint32) ((uchar*) (A))[0]) << 16) |\
45 (((uint32) ((uchar*) (A))[1]) << 8) | \
46 ((uint32) ((uchar*) (A))[2])))
47#define mi_sint4korr(A) ((int32) (((int32) (((uchar*) (A))[3])) +\
48 ((int32) (((uchar*) (A))[2]) << 8) +\
49 ((int32) (((uchar*) (A))[1]) << 16) +\
50 ((int32) ((int16) ((char*) (A))[0]) << 24)))
51#define mi_sint8korr(A) ((longlong) mi_uint8korr(A))
52#define mi_uint2korr(A) ((uint16) (((uint16) (((uchar*) (A))[1])) +\
53 ((uint16) (((uchar*) (A))[0]) << 8)))
54#define mi_uint3korr(A) ((uint32) (((uint32) (((uchar*) (A))[2])) +\
55 (((uint32) (((uchar*) (A))[1])) << 8) +\
56 (((uint32) (((uchar*) (A))[0])) << 16)))
57#define mi_uint4korr(A) ((uint32) (((uint32) (((uchar*) (A))[3])) +\
58 (((uint32) (((uchar*) (A))[2])) << 8) +\
59 (((uint32) (((uchar*) (A))[1])) << 16) +\
60 (((uint32) (((uchar*) (A))[0])) << 24)))
61#define mi_uint5korr(A) ((ulonglong)(((uint32) (((uchar*) (A))[4])) +\
62 (((uint32) (((uchar*) (A))[3])) << 8) +\
63 (((uint32) (((uchar*) (A))[2])) << 16) +\
64 (((uint32) (((uchar*) (A))[1])) << 24)) +\
65 (((ulonglong) (((uchar*) (A))[0])) << 32))
66#define mi_uint6korr(A) ((ulonglong)(((uint32) (((uchar*) (A))[5])) +\
67 (((uint32) (((uchar*) (A))[4])) << 8) +\
68 (((uint32) (((uchar*) (A))[3])) << 16) +\
69 (((uint32) (((uchar*) (A))[2])) << 24)) +\
70 (((ulonglong) (((uint32) (((uchar*) (A))[1])) +\
71 (((uint32) (((uchar*) (A))[0]) << 8)))) <<\
72 32))
73#define mi_uint7korr(A) ((ulonglong)(((uint32) (((uchar*) (A))[6])) +\
74 (((uint32) (((uchar*) (A))[5])) << 8) +\
75 (((uint32) (((uchar*) (A))[4])) << 16) +\
76 (((uint32) (((uchar*) (A))[3])) << 24)) +\
77 (((ulonglong) (((uint32) (((uchar*) (A))[2])) +\
78 (((uint32) (((uchar*) (A))[1])) << 8) +\
79 (((uint32) (((uchar*) (A))[0])) << 16))) <<\
80 32))
81#define mi_uint8korr(A) ((ulonglong)(((uint32) (((uchar*) (A))[7])) +\
82 (((uint32) (((uchar*) (A))[6])) << 8) +\
83 (((uint32) (((uchar*) (A))[5])) << 16) +\
84 (((uint32) (((uchar*) (A))[4])) << 24)) +\
85 (((ulonglong) (((uint32) (((uchar*) (A))[3])) +\
86 (((uint32) (((uchar*) (A))[2])) << 8) +\
87 (((uint32) (((uchar*) (A))[1])) << 16) +\
88 (((uint32) (((uchar*) (A))[0])) << 24))) <<\
89 32))
90
91/* This one is for uniformity */
92#define mi_int1store(T,A) *((uchar*)(T))= (uchar) (A)
93
94#define mi_int2store(T,A) { uint def_temp= (uint) (A) ;\
95 ((uchar*) (T))[1]= (uchar) (def_temp);\
96 ((uchar*) (T))[0]= (uchar) (def_temp >> 8); }
97#define mi_int3store(T,A) { /*lint -save -e734 */\
98 ulong def_temp= (ulong) (A);\
99 ((uchar*) (T))[2]= (uchar) (def_temp);\
100 ((uchar*) (T))[1]= (uchar) (def_temp >> 8);\
101 ((uchar*) (T))[0]= (uchar) (def_temp >> 16);\
102 /*lint -restore */}
103#define mi_int4store(T,A) { ulong def_temp= (ulong) (A);\
104 ((uchar*) (T))[3]= (uchar) (def_temp);\
105 ((uchar*) (T))[2]= (uchar) (def_temp >> 8);\
106 ((uchar*) (T))[1]= (uchar) (def_temp >> 16);\
107 ((uchar*) (T))[0]= (uchar) (def_temp >> 24); }
108#define mi_int5store(T,A) { ulong def_temp= (ulong) (A),\
109 def_temp2= (ulong) ((A) >> 32);\
110 ((uchar*) (T))[4]= (uchar) (def_temp);\
111 ((uchar*) (T))[3]= (uchar) (def_temp >> 8);\
112 ((uchar*) (T))[2]= (uchar) (def_temp >> 16);\
113 ((uchar*) (T))[1]= (uchar) (def_temp >> 24);\
114 ((uchar*) (T))[0]= (uchar) (def_temp2); }
115#define mi_int6store(T,A) { ulong def_temp= (ulong) (A),\
116 def_temp2= (ulong) ((A) >> 32);\
117 ((uchar*) (T))[5]= (uchar) (def_temp);\
118 ((uchar*) (T))[4]= (uchar) (def_temp >> 8);\
119 ((uchar*) (T))[3]= (uchar) (def_temp >> 16);\
120 ((uchar*) (T))[2]= (uchar) (def_temp >> 24);\
121 ((uchar*) (T))[1]= (uchar) (def_temp2);\
122 ((uchar*) (T))[0]= (uchar) (def_temp2 >> 8); }
123#define mi_int7store(T,A) { ulong def_temp= (ulong) (A),\
124 def_temp2= (ulong) ((A) >> 32);\
125 ((uchar*) (T))[6]= (uchar) (def_temp);\
126 ((uchar*) (T))[5]= (uchar) (def_temp >> 8);\
127 ((uchar*) (T))[4]= (uchar) (def_temp >> 16);\
128 ((uchar*) (T))[3]= (uchar) (def_temp >> 24);\
129 ((uchar*) (T))[2]= (uchar) (def_temp2);\
130 ((uchar*) (T))[1]= (uchar) (def_temp2 >> 8);\
131 ((uchar*) (T))[0]= (uchar) (def_temp2 >> 16); }
132#define mi_int8store(T,A) { ulong def_temp3= (ulong) (A),\
133 def_temp4= (ulong) ((A) >> 32);\
134 mi_int4store((uchar*) (T) + 0, def_temp4);\
135 mi_int4store((uchar*) (T) + 4, def_temp3); }
136
137#ifdef WORDS_BIGENDIAN
138
139#define mi_float4store(T,A) { ((uchar*) (T))[0]= ((uchar*) &A)[0];\
140 ((uchar*) (T))[1]= ((uchar*) &A)[1];\
141 ((uchar*) (T))[2]= ((uchar*) &A)[2];\
142 ((uchar*) (T))[3]= ((uchar*) &A)[3]; }
143
144#define mi_float4get(V,M) { float def_temp;\
145 ((uchar*) &def_temp)[0]= ((uchar*) (M))[0];\
146 ((uchar*) &def_temp)[1]= ((uchar*) (M))[1];\
147 ((uchar*) &def_temp)[2]= ((uchar*) (M))[2];\
148 ((uchar*) &def_temp)[3]= ((uchar*) (M))[3];\
149 (V)= def_temp; }
150
151#define mi_float8store(T,V) { ((uchar*) (T))[0]= ((uchar*) &V)[0];\
152 ((uchar*) (T))[1]= ((uchar*) &V)[1];\
153 ((uchar*) (T))[2]= ((uchar*) &V)[2];\
154 ((uchar*) (T))[3]= ((uchar*) &V)[3];\
155 ((uchar*) (T))[4]= ((uchar*) &V)[4];\
156 ((uchar*) (T))[5]= ((uchar*) &V)[5];\
157 ((uchar*) (T))[6]= ((uchar*) &V)[6];\
158 ((uchar*) (T))[7]= ((uchar*) &V)[7]; }
159
160#define mi_float8get(V,M) { double def_temp;\
161 ((uchar*) &def_temp)[0]= ((uchar*) (M))[0];\
162 ((uchar*) &def_temp)[1]= ((uchar*) (M))[1];\
163 ((uchar*) &def_temp)[2]= ((uchar*) (M))[2];\
164 ((uchar*) &def_temp)[3]= ((uchar*) (M))[3];\
165 ((uchar*) &def_temp)[4]= ((uchar*) (M))[4];\
166 ((uchar*) &def_temp)[5]= ((uchar*) (M))[5];\
167 ((uchar*) &def_temp)[6]= ((uchar*) (M))[6];\
168 ((uchar*) &def_temp)[7]= ((uchar*) (M))[7]; \
169 (V)= def_temp; }
170#else
171
172#define mi_float4store(T,A) { ((uchar*) (T))[0]= ((uchar*) &A)[3];\
173 ((uchar*) (T))[1]= ((uchar*) &A)[2];\
174 ((uchar*) (T))[2]= ((uchar*) &A)[1];\
175 ((uchar*) (T))[3]= ((uchar*) &A)[0]; }
176
177#define mi_float4get(V,M) { float def_temp;\
178 ((uchar*) &def_temp)[0]= ((uchar*) (M))[3];\
179 ((uchar*) &def_temp)[1]= ((uchar*) (M))[2];\
180 ((uchar*) &def_temp)[2]= ((uchar*) (M))[1];\
181 ((uchar*) &def_temp)[3]= ((uchar*) (M))[0];\
182 (V)= def_temp; }
183
184#if defined(__FLOAT_WORD_ORDER) && (__FLOAT_WORD_ORDER == __BIG_ENDIAN)
185#define mi_float8store(T,V) { ((uchar*) (T))[0]= ((uchar*) &V)[3];\
186 ((uchar*) (T))[1]= ((uchar*) &V)[2];\
187 ((uchar*) (T))[2]= ((uchar*) &V)[1];\
188 ((uchar*) (T))[3]= ((uchar*) &V)[0];\
189 ((uchar*) (T))[4]= ((uchar*) &V)[7];\
190 ((uchar*) (T))[5]= ((uchar*) &V)[6];\
191 ((uchar*) (T))[6]= ((uchar*) &V)[5];\
192 ((uchar*) (T))[7]= ((uchar*) &V)[4];}
193
194#define mi_float8get(V,M) { double def_temp;\
195 ((uchar*) &def_temp)[0]= ((uchar*) (M))[3];\
196 ((uchar*) &def_temp)[1]= ((uchar*) (M))[2];\
197 ((uchar*) &def_temp)[2]= ((uchar*) (M))[1];\
198 ((uchar*) &def_temp)[3]= ((uchar*) (M))[0];\
199 ((uchar*) &def_temp)[4]= ((uchar*) (M))[7];\
200 ((uchar*) &def_temp)[5]= ((uchar*) (M))[6];\
201 ((uchar*) &def_temp)[6]= ((uchar*) (M))[5];\
202 ((uchar*) &def_temp)[7]= ((uchar*) (M))[4];\
203 (V)= def_temp; }
204
205#else
206#define mi_float8store(T,V) { ((uchar*) (T))[0]= ((uchar*) &V)[7];\
207 ((uchar*) (T))[1]= ((uchar*) &V)[6];\
208 ((uchar*) (T))[2]= ((uchar*) &V)[5];\
209 ((uchar*) (T))[3]= ((uchar*) &V)[4];\
210 ((uchar*) (T))[4]= ((uchar*) &V)[3];\
211 ((uchar*) (T))[5]= ((uchar*) &V)[2];\
212 ((uchar*) (T))[6]= ((uchar*) &V)[1];\
213 ((uchar*) (T))[7]= ((uchar*) &V)[0];}
214
215#define mi_float8get(V,M) { double def_temp;\
216 ((uchar*) &def_temp)[0]= ((uchar*) (M))[7];\
217 ((uchar*) &def_temp)[1]= ((uchar*) (M))[6];\
218 ((uchar*) &def_temp)[2]= ((uchar*) (M))[5];\
219 ((uchar*) &def_temp)[3]= ((uchar*) (M))[4];\
220 ((uchar*) &def_temp)[4]= ((uchar*) (M))[3];\
221 ((uchar*) &def_temp)[5]= ((uchar*) (M))[2];\
222 ((uchar*) &def_temp)[6]= ((uchar*) (M))[1];\
223 ((uchar*) &def_temp)[7]= ((uchar*) (M))[0];\
224 (V)= def_temp; }
225#endif /* __FLOAT_WORD_ORDER */
226#endif /* WORDS_BIGENDIAN */
227
228#define mi_rowstore(T,A) mi_int8store(T, A)
229#define mi_rowkorr(T) mi_uint8korr(T)
230
231#if SIZEOF_OFF_T > 4
232#define mi_sizestore(T,A) mi_int8store(T, A)
233#define mi_sizekorr(T) mi_uint8korr(T)
234#else
235#define mi_sizestore(T,A) { if ((A) == HA_OFFSET_ERROR)\
236 memset((T), 255, 8);\
237 else { mi_int4store((T), 0);\
238 mi_int4store(((T) + 4), A); }}
239#define mi_sizekorr(T) mi_uint4korr((uchar*) (T) + 4)
240#endif
241#endif /* MYISAMPACK_INCLUDED */
242