summaryrefslogtreecommitdiff
path: root/include/myisampack.h
blob: a065de378d8da3b13490d216b7d2453305141ae7 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
#ifndef MYISAMPACK_INCLUDED
#define MYISAMPACK_INCLUDED

/* Copyright (c) 2000-2002, 2004, 2006 MySQL AB, 2009 Sun Microsystems, Inc.
   Use is subject to license terms.

   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; version 2 of the License.

   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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA */

/*
  Storing of values in high byte first order.

  integer keys and file pointers are stored with high byte first to get
  better compression
*/

/* these two are for uniformity */
#define mi_sint1korr(A) ((int8)(*A))
#define mi_uint1korr(A) ((uint8)(*A))

#define mi_sint2korr(A) ((int16) (((int16) (((const uchar*) (A))[1])) +\
                                  ((int16) ((int16) ((const char*) (A))[0]) << 8)))
#define mi_sint3korr(A) ((int32) (((((const uchar*) (A))[0]) & 128) ? \
                                  (((uint32) 255L << 24) | \
                                   (((uint32) ((const uchar*) (A))[0]) << 16) |\
                                   (((uint32) ((const uchar*) (A))[1]) << 8) | \
                                   ((uint32) ((const uchar*) (A))[2])) : \
                                  (((uint32) ((const uchar*) (A))[0]) << 16) |\
                                  (((uint32) ((const uchar*) (A))[1]) << 8) | \
                                  ((uint32) ((const uchar*) (A))[2])))
#define mi_sint4korr(A) ((int32) (((int32) (((const uchar*) (A))[3])) +\
                                  ((int32) (((const uchar*) (A))[2]) << 8) +\
                                  ((int32) (((const uchar*) (A))[1]) << 16) +\
                                  ((int32) ((int16) ((const char*) (A))[0]) << 24)))
#define mi_sint8korr(A) ((longlong) mi_uint8korr(A))
#define mi_uint2korr(A) ((uint16) (((uint16) (((const uchar*) (A))[1])) +\
                                   ((uint16) (((const uchar*) (A))[0]) << 8)))
#define mi_uint3korr(A) ((uint32) (((uint32) (((const uchar*) (A))[2])) +\
                                   (((uint32) (((const uchar*) (A))[1])) << 8) +\
                                   (((uint32) (((const uchar*) (A))[0])) << 16)))
#define mi_uint4korr(A) ((uint32) (((uint32) (((const uchar*) (A))[3])) +\
                                   (((uint32) (((const uchar*) (A))[2])) << 8) +\
                                   (((uint32) (((const uchar*) (A))[1])) << 16) +\
                                   (((uint32) (((const uchar*) (A))[0])) << 24)))
#define mi_uint5korr(A) ((ulonglong)(((uint32) (((const uchar*) (A))[4])) +\
                                    (((uint32) (((const uchar*) (A))[3])) << 8) +\
                                    (((uint32) (((const uchar*) (A))[2])) << 16) +\
                                    (((uint32) (((const uchar*) (A))[1])) << 24)) +\
                                    (((ulonglong) (((const uchar*) (A))[0])) << 32))
#define mi_uint6korr(A) ((ulonglong)(((uint32) (((const uchar*) (A))[5])) +\
                                    (((uint32) (((const uchar*) (A))[4])) << 8) +\
                                    (((uint32) (((const uchar*) (A))[3])) << 16) +\
                                    (((uint32) (((const uchar*) (A))[2])) << 24)) +\
                        (((ulonglong) (((uint32) (((const uchar*) (A))[1])) +\
                                    (((uint32) (((const uchar*) (A))[0]) << 8)))) <<\
                                     32))
#define mi_uint7korr(A) ((ulonglong)(((uint32) (((const uchar*) (A))[6])) +\
                                    (((uint32) (((const uchar*) (A))[5])) << 8) +\
                                    (((uint32) (((const uchar*) (A))[4])) << 16) +\
                                    (((uint32) (((const uchar*) (A))[3])) << 24)) +\
                        (((ulonglong) (((uint32) (((const uchar*) (A))[2])) +\
                                    (((uint32) (((const uchar*) (A))[1])) << 8) +\
                                    (((uint32) (((const uchar*) (A))[0])) << 16))) <<\
                                     32))
#define mi_uint8korr(A) ((ulonglong)(((uint32) (((const uchar*) (A))[7])) +\
                                    (((uint32) (((const uchar*) (A))[6])) << 8) +\
                                    (((uint32) (((const uchar*) (A))[5])) << 16) +\
                                    (((uint32) (((const uchar*) (A))[4])) << 24)) +\
                        (((ulonglong) (((uint32) (((const uchar*) (A))[3])) +\
                                    (((uint32) (((const uchar*) (A))[2])) << 8) +\
                                    (((uint32) (((const uchar*) (A))[1])) << 16) +\
                                    (((uint32) (((const uchar*) (A))[0])) << 24))) <<\
                                    32))

/* This one is for uniformity */
#define mi_int1store(T,A) *((uchar*)(T))= (uchar) (A)

#define mi_int2store(T,A)   { uint def_temp= (uint) (A) ;\
                              ((uchar*) (T))[1]= (uchar) (def_temp);\
                              ((uchar*) (T))[0]= (uchar) (def_temp >> 8); }
#define mi_int3store(T,A)   { /*lint -save -e734 */\
                              ulong def_temp= (ulong) (A);\
                              ((uchar*) (T))[2]= (uchar) (def_temp);\
                              ((uchar*) (T))[1]= (uchar) (def_temp >> 8);\
                              ((uchar*) (T))[0]= (uchar) (def_temp >> 16);\
                              /*lint -restore */}
#define mi_int4store(T,A)   { ulong def_temp= (ulong) (A);\
                              ((uchar*) (T))[3]= (uchar) (def_temp);\
                              ((uchar*) (T))[2]= (uchar) (def_temp >> 8);\
                              ((uchar*) (T))[1]= (uchar) (def_temp >> 16);\
                              ((uchar*) (T))[0]= (uchar) (def_temp >> 24); }
#define mi_int5store(T,A)   { ulong def_temp= (ulong) (A),\
                              def_temp2= (ulong) ((A) >> 32);\
                              ((uchar*) (T))[4]= (uchar) (def_temp);\
                              ((uchar*) (T))[3]= (uchar) (def_temp >> 8);\
                              ((uchar*) (T))[2]= (uchar) (def_temp >> 16);\
                              ((uchar*) (T))[1]= (uchar) (def_temp >> 24);\
                              ((uchar*) (T))[0]= (uchar) (def_temp2); }
#define mi_int6store(T,A)   { ulong def_temp= (ulong) (A),\
                              def_temp2= (ulong) ((A) >> 32);\
                              ((uchar*) (T))[5]= (uchar) (def_temp);\
                              ((uchar*) (T))[4]= (uchar) (def_temp >> 8);\
                              ((uchar*) (T))[3]= (uchar) (def_temp >> 16);\
                              ((uchar*) (T))[2]= (uchar) (def_temp >> 24);\
                              ((uchar*) (T))[1]= (uchar) (def_temp2);\
                              ((uchar*) (T))[0]= (uchar) (def_temp2 >> 8); }
#define mi_int7store(T,A)   { ulong def_temp= (ulong) (A),\
                              def_temp2= (ulong) ((A) >> 32);\
                              ((uchar*) (T))[6]= (uchar) (def_temp);\
                              ((uchar*) (T))[5]= (uchar) (def_temp >> 8);\
                              ((uchar*) (T))[4]= (uchar) (def_temp >> 16);\
                              ((uchar*) (T))[3]= (uchar) (def_temp >> 24);\
                              ((uchar*) (T))[2]= (uchar) (def_temp2);\
                              ((uchar*) (T))[1]= (uchar) (def_temp2 >> 8);\
                              ((uchar*) (T))[0]= (uchar) (def_temp2 >> 16); }
#define mi_int8store(T,A)   { ulong def_temp3= (ulong) (A),\
                              def_temp4= (ulong) ((A) >> 32);\
                              mi_int4store((uchar*) (T) + 0, def_temp4);\
                              mi_int4store((uchar*) (T) + 4, def_temp3); }

#ifdef WORDS_BIGENDIAN

#define mi_float4store(T,A) { ((uchar*) (T))[0]= ((uchar*) &A)[0];\
                              ((uchar*) (T))[1]= ((uchar*) &A)[1];\
                              ((uchar*) (T))[2]= ((uchar*) &A)[2];\
                              ((uchar*) (T))[3]= ((uchar*) &A)[3]; }

#define mi_float4get(V,M)   { float def_temp;\
                              ((uchar*) &def_temp)[0]= ((const uchar*) (M))[0];\
                              ((uchar*) &def_temp)[1]= ((const uchar*) (M))[1]; \
                              ((uchar*) &def_temp)[2]= ((const uchar*) (M))[2];\
                              ((uchar*) &def_temp)[3]= ((const uchar*) (M))[3];\
                              (V)= def_temp; }

#define mi_float8store(T,V) { ((uchar*) (T))[0]= ((const uchar*) &V)[0];\
                              ((uchar*) (T))[1]= ((const uchar*) &V)[1];\
                              ((uchar*) (T))[2]= ((const uchar*) &V)[2];\
                              ((uchar*) (T))[3]= ((const uchar*) &V)[3];\
                              ((uchar*) (T))[4]= ((const uchar*) &V)[4];\
                              ((uchar*) (T))[5]= ((const uchar*) &V)[5];\
                              ((uchar*) (T))[6]= ((const uchar*) &V)[6];\
                              ((uchar*) (T))[7]= ((const uchar*) &V)[7]; }

#define mi_float8get(V,M)   { double def_temp;\
                              ((uchar*) &def_temp)[0]= ((const uchar*) (M))[0];\
                              ((uchar*) &def_temp)[1]= ((const uchar*) (M))[1];\
                              ((uchar*) &def_temp)[2]= ((const uchar*) (M))[2];\
                              ((uchar*) &def_temp)[3]= ((const uchar*) (M))[3];\
                              ((uchar*) &def_temp)[4]= ((const uchar*) (M))[4];\
                              ((uchar*) &def_temp)[5]= ((const uchar*) (M))[5];\
                              ((uchar*) &def_temp)[6]= ((const uchar*) (M))[6];\
                              ((uchar*) &def_temp)[7]= ((const uchar*) (M))[7]; \
                              (V)= def_temp; }
#else

#define mi_float4store(T,A) { ((uchar*) (T))[0]= ((const uchar*) &A)[3];\
                              ((uchar*) (T))[1]= ((const uchar*) &A)[2];\
                              ((uchar*) (T))[2]= ((const uchar*) &A)[1];\
                              ((uchar*) (T))[3]= ((const uchar*) &A)[0]; }

#define mi_float4get(V,M)   { float def_temp;\
                              ((uchar*) &def_temp)[0]= ((const uchar*) (M))[3];\
                              ((uchar*) &def_temp)[1]= ((const uchar*) (M))[2];\
                              ((uchar*) &def_temp)[2]= ((const uchar*) (M))[1];\
                              ((uchar*) &def_temp)[3]= ((const uchar*) (M))[0];\
                              (V)= def_temp; }

#if defined(__FLOAT_WORD_ORDER) && (__FLOAT_WORD_ORDER == __BIG_ENDIAN)
#define mi_float8store(T,V) { ((uchar*) (T))[0]= ((const uchar*) &V)[3];\
                              ((uchar*) (T))[1]= ((const uchar*) &V)[2];\
                              ((uchar*) (T))[2]= ((const uchar*) &V)[1];\
                              ((uchar*) (T))[3]= ((const uchar*) &V)[0];\
                              ((uchar*) (T))[4]= ((const uchar*) &V)[7];\
                              ((uchar*) (T))[5]= ((const uchar*) &V)[6];\
                              ((uchar*) (T))[6]= ((const uchar*) &V)[5];\
                              ((uchar*) (T))[7]= ((const uchar*) &V)[4];}

#define mi_float8get(V,M)   { double def_temp;\
                              ((uchar*) &def_temp)[0]= ((const uchar*) (M))[3];\
                              ((uchar*) &def_temp)[1]= ((const uchar*) (M))[2];\
                              ((uchar*) &def_temp)[2]= ((const uchar*) (M))[1];\
                              ((uchar*) &def_temp)[3]= ((const uchar*) (M))[0];\
                              ((uchar*) &def_temp)[4]= ((const uchar*) (M))[7];\
                              ((uchar*) &def_temp)[5]= ((const uchar*) (M))[6];\
                              ((uchar*) &def_temp)[6]= ((const uchar*) (M))[5];\
                              ((uchar*) &def_temp)[7]= ((const uchar*) (M))[4];\
                              (V)= def_temp; }

#else
#define mi_float8store(T,V) { ((uchar*) (T))[0]= ((const uchar*) &V)[7];\
                              ((uchar*) (T))[1]= ((const uchar*) &V)[6];\
                              ((uchar*) (T))[2]= ((const uchar*) &V)[5];\
                              ((uchar*) (T))[3]= ((const uchar*) &V)[4];\
                              ((uchar*) (T))[4]= ((const uchar*) &V)[3];\
                              ((uchar*) (T))[5]= ((const uchar*) &V)[2];\
                              ((uchar*) (T))[6]= ((const uchar*) &V)[1];\
                              ((uchar*) (T))[7]= ((const uchar*) &V)[0];}

#define mi_float8get(V,M)   { double def_temp;\
                              ((uchar*) &def_temp)[0]= ((const uchar*) (M))[7];\
                              ((uchar*) &def_temp)[1]= ((const uchar*) (M))[6];\
                              ((uchar*) &def_temp)[2]= ((const uchar*) (M))[5];\
                              ((uchar*) &def_temp)[3]= ((const uchar*) (M))[4];\
                              ((uchar*) &def_temp)[4]= ((const uchar*) (M))[3];\
                              ((uchar*) &def_temp)[5]= ((const uchar*) (M))[2];\
                              ((uchar*) &def_temp)[6]= ((const uchar*) (M))[1];\
                              ((uchar*) &def_temp)[7]= ((const uchar*) (M))[0];\
                              (V)= def_temp; }
#endif /* __FLOAT_WORD_ORDER */
#endif /* WORDS_BIGENDIAN */

/* Fix to avoid warnings when sizeof(ha_rows) == sizeof(long) */

#ifdef BIG_TABLES
#define mi_rowstore(T,A)    mi_int8store(T, A)
#define mi_rowkorr(T)       mi_uint8korr(T)
#else
#define mi_rowstore(T,A)    { mi_int4store(T, 0);\
                              mi_int4store(((uchar*) (T) + 4), A); }
#define mi_rowkorr(T)       mi_uint4korr((const uchar*) (T) + 4)
#endif

#if SIZEOF_OFF_T > 4
#define mi_sizestore(T,A)   mi_int8store(T, A)
#define mi_sizekorr(T)      mi_uint8korr(T)
#else
#define mi_sizestore(T,A)   { if ((A) == HA_OFFSET_ERROR)\
                                bfill((char*) (T), 8, 255);\
                              else { mi_int4store((T), 0);\
                                     mi_int4store(((T) + 4), A); }}
#define mi_sizekorr(T)      mi_uint4korr((const uchar*) (T) + 4)
#endif
#endif /* MYISAMPACK_INCLUDED */