/include/myisampack.h

https://github.com/codership/mysql-wsrep · C Header · 249 lines · 199 code · 20 blank · 30 comment · 5 complexity · 52369b6d29848fdd749b5d9812c36b45 MD5 · raw file 

    

  1. #ifndef MYISAMPACK_INCLUDED
    2. 

  2. #define MYISAMPACK_INCLUDED
    3. 

  3. 

  4. /* Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.
    5. 

    6. 

  6.    This program is free software; you can redistribute it and/or modify
    7. 

  7.    it under the terms of the GNU General Public License, version 2.0,
    8. 

  8.    as published by the Free Software Foundation.
    9. 

    10. 

  10.    This program is also distributed with certain software (including
    11. 

  11.    but not limited to OpenSSL) that is licensed under separate terms,
    12. 

  12.    as designated in a particular file or component or in included license
    13. 

  13.    documentation.  The authors of MySQL hereby grant you an additional
    14. 

  14.    permission to link the program and your derivative works with the
    15. 

  15.    separately licensed software that they have included with MySQL.
    16. 

    17. 

  17.    This program is distributed in the hope that it will be useful,
    18. 

  18.    but WITHOUT ANY WARRANTY; without even the implied warranty of
    19. 

  19.    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    20. 

  20.    GNU General Public License, version 2.0, for more details.
    21. 

    22. 

  22.    You should have received a copy of the GNU General Public License
    23. 

  23.    along with this program; if not, write to the Free Software
    24. 

  24.    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA */
    25. 

  25. 

  26. /*
    27. 

  27.   Storing of values in high byte first order.
    28. 

    29. 

  29.   integer keys and file pointers are stored with high byte first to get
    30. 

  30.   better compression
    31. 

  31. */
    32. 

  32. 

  33. /* these two are for uniformity */
    34. 

  34. #define mi_sint1korr(A) ((int8)(*A))
    35. 

  35. #define mi_uint1korr(A) ((uint8)(*A))
    36. 

  36. 

  37. #define mi_sint2korr(A) ((int16) (((int16) (((uchar*) (A))[1])) +\
    38. 

  38.                                   ((int16) ((int16) ((char*) (A))[0]) << 8)))
    39. 

  39. #define mi_sint3korr(A) ((int32) (((((uchar*) (A))[0]) & 128) ? \
    40. 

  40.                                   (((uint32) 255L << 24) | \
    41. 

  41.                                    (((uint32) ((uchar*) (A))[0]) << 16) |\
    42. 

  42.                                    (((uint32) ((uchar*) (A))[1]) << 8) | \
    43. 

  43.                                    ((uint32) ((uchar*) (A))[2])) : \
    44. 

  44.                                   (((uint32) ((uchar*) (A))[0]) << 16) |\
    45. 

  45.                                   (((uint32) ((uchar*) (A))[1]) << 8) | \
    46. 

  46.                                   ((uint32) ((uchar*) (A))[2])))
    47. 

  47. #define mi_sint4korr(A) ((int32) (((int32) (((uchar*) (A))[3])) +\
    48. 

  48.                                   ((int32) (((uchar*) (A))[2]) << 8) +\
    49. 

  49.                                   ((int32) (((uchar*) (A))[1]) << 16) +\
    50. 

  50.                                   ((int32) ((int16) ((char*) (A))[0]) << 24)))
    51. 

  51. #define mi_sint8korr(A) ((longlong) mi_uint8korr(A))
    52. 

  52. #define mi_uint2korr(A) ((uint16) (((uint16) (((uchar*) (A))[1])) +\
    53. 

  53.                                    ((uint16) (((uchar*) (A))[0]) << 8)))
    54. 

  54. #define mi_uint3korr(A) ((uint32) (((uint32) (((uchar*) (A))[2])) +\
    55. 

  55.                                    (((uint32) (((uchar*) (A))[1])) << 8) +\
    56. 

  56.                                    (((uint32) (((uchar*) (A))[0])) << 16)))
    57. 

  57. #define mi_uint4korr(A) ((uint32) (((uint32) (((uchar*) (A))[3])) +\
    58. 

  58.                                    (((uint32) (((uchar*) (A))[2])) << 8) +\
    59. 

  59.                                    (((uint32) (((uchar*) (A))[1])) << 16) +\
    60. 

  60.                                    (((uint32) (((uchar*) (A))[0])) << 24)))
    61. 

  61. #define mi_uint5korr(A) ((ulonglong)(((uint32) (((uchar*) (A))[4])) +\
    62. 

  62.                                     (((uint32) (((uchar*) (A))[3])) << 8) +\
    63. 

  63.                                     (((uint32) (((uchar*) (A))[2])) << 16) +\
    64. 

  64.                                     (((uint32) (((uchar*) (A))[1])) << 24)) +\
    65. 

  65.                                     (((ulonglong) (((uchar*) (A))[0])) << 32))
    66. 

  66. #define mi_uint6korr(A) ((ulonglong)(((uint32) (((uchar*) (A))[5])) +\
    67. 

  67.                                     (((uint32) (((uchar*) (A))[4])) << 8) +\
    68. 

  68.                                     (((uint32) (((uchar*) (A))[3])) << 16) +\
    69. 

  69.                                     (((uint32) (((uchar*) (A))[2])) << 24)) +\
    70. 

  70.                         (((ulonglong) (((uint32) (((uchar*) (A))[1])) +\
    71. 

  71.                                     (((uint32) (((uchar*) (A))[0]) << 8)))) <<\
    72. 

  72.                                      32))
    73. 

  73. #define mi_uint7korr(A) ((ulonglong)(((uint32) (((uchar*) (A))[6])) +\
    74. 

  74.                                     (((uint32) (((uchar*) (A))[5])) << 8) +\
    75. 

  75.                                     (((uint32) (((uchar*) (A))[4])) << 16) +\
    76. 

  76.                                     (((uint32) (((uchar*) (A))[3])) << 24)) +\
    77. 

  77.                         (((ulonglong) (((uint32) (((uchar*) (A))[2])) +\
    78. 

  78.                                     (((uint32) (((uchar*) (A))[1])) << 8) +\
    79. 

  79.                                     (((uint32) (((uchar*) (A))[0])) << 16))) <<\
    80. 

  80.                                      32))
    81. 

  81. #define mi_uint8korr(A) ((ulonglong)(((uint32) (((uchar*) (A))[7])) +\
    82. 

  82.                                     (((uint32) (((uchar*) (A))[6])) << 8) +\
    83. 

  83.                                     (((uint32) (((uchar*) (A))[5])) << 16) +\
    84. 

  84.                                     (((uint32) (((uchar*) (A))[4])) << 24)) +\
    85. 

  85.                         (((ulonglong) (((uint32) (((uchar*) (A))[3])) +\
    86. 

  86.                                     (((uint32) (((uchar*) (A))[2])) << 8) +\
    87. 

  87.                                     (((uint32) (((uchar*) (A))[1])) << 16) +\
    88. 

  88.                                     (((uint32) (((uchar*) (A))[0])) << 24))) <<\
    89. 

  89.                                     32))
    90. 

  90. 

  91. /* This one is for uniformity */
    92. 

  92. #define mi_int1store(T,A) *((uchar*)(T))= (uchar) (A)
    93. 

  93. 

  94. #define mi_int2store(T,A)   { uint def_temp= (uint) (A) ;\
    95. 

  95.                               ((uchar*) (T))[1]= (uchar) (def_temp);\
    96. 

  96.                               ((uchar*) (T))[0]= (uchar) (def_temp >> 8); }
    97. 

  97. #define mi_int3store(T,A)   { /*lint -save -e734 */\
    98. 

  98.                               ulong def_temp= (ulong) (A);\
    99. 

  99.                               ((uchar*) (T))[2]= (uchar) (def_temp);\
    100. 

  100.                               ((uchar*) (T))[1]= (uchar) (def_temp >> 8);\
    101. 

  101.                               ((uchar*) (T))[0]= (uchar) (def_temp >> 16);\
    102. 

  102.                               /*lint -restore */}
    103. 

  103. #define mi_int4store(T,A)   { ulong def_temp= (ulong) (A);\
    104. 

  104.                               ((uchar*) (T))[3]= (uchar) (def_temp);\
    105. 

  105.                               ((uchar*) (T))[2]= (uchar) (def_temp >> 8);\
    106. 

  106.                               ((uchar*) (T))[1]= (uchar) (def_temp >> 16);\
    107. 

  107.                               ((uchar*) (T))[0]= (uchar) (def_temp >> 24); }
    108. 

  108. #define mi_int5store(T,A)   { ulong def_temp= (ulong) (A),\
    109. 

  109.                               def_temp2= (ulong) ((A) >> 32);\
    110. 

  110.                               ((uchar*) (T))[4]= (uchar) (def_temp);\
    111. 

  111.                               ((uchar*) (T))[3]= (uchar) (def_temp >> 8);\
    112. 

  112.                               ((uchar*) (T))[2]= (uchar) (def_temp >> 16);\
    113. 

  113.                               ((uchar*) (T))[1]= (uchar) (def_temp >> 24);\
    114. 

  114.                               ((uchar*) (T))[0]= (uchar) (def_temp2); }
    115. 

  115. #define mi_int6store(T,A)   { ulong def_temp= (ulong) (A),\
    116. 

  116.                               def_temp2= (ulong) ((A) >> 32);\
    117. 

  117.                               ((uchar*) (T))[5]= (uchar) (def_temp);\
    118. 

  118.                               ((uchar*) (T))[4]= (uchar) (def_temp >> 8);\
    119. 

  119.                               ((uchar*) (T))[3]= (uchar) (def_temp >> 16);\
    120. 

  120.                               ((uchar*) (T))[2]= (uchar) (def_temp >> 24);\
    121. 

  121.                               ((uchar*) (T))[1]= (uchar) (def_temp2);\
    122. 

  122.                               ((uchar*) (T))[0]= (uchar) (def_temp2 >> 8); }
    123. 

  123. #define mi_int7store(T,A)   { ulong def_temp= (ulong) (A),\
    124. 

  124.                               def_temp2= (ulong) ((A) >> 32);\
    125. 

  125.                               ((uchar*) (T))[6]= (uchar) (def_temp);\
    126. 

  126.                               ((uchar*) (T))[5]= (uchar) (def_temp >> 8);\
    127. 

  127.                               ((uchar*) (T))[4]= (uchar) (def_temp >> 16);\
    128. 

  128.                               ((uchar*) (T))[3]= (uchar) (def_temp >> 24);\
    129. 

  129.                               ((uchar*) (T))[2]= (uchar) (def_temp2);\
    130. 

  130.                               ((uchar*) (T))[1]= (uchar) (def_temp2 >> 8);\
    131. 

  131.                               ((uchar*) (T))[0]= (uchar) (def_temp2 >> 16); }
    132. 

  132. #define mi_int8store(T,A)   { ulong def_temp3= (ulong) (A),\
    133. 

  133.                               def_temp4= (ulong) ((A) >> 32);\
    134. 

  134.                               mi_int4store((uchar*) (T) + 0, def_temp4);\
    135. 

  135.                               mi_int4store((uchar*) (T) + 4, def_temp3); }
    136. 

  136. 

  137. #ifdef WORDS_BIGENDIAN
    138. 

  138. 

  139. #define mi_float4store(T,A) { ((uchar*) (T))[0]= ((uchar*) &A)[0];\
    140. 

  140.                               ((uchar*) (T))[1]= ((uchar*) &A)[1];\
    141. 

  141.                               ((uchar*) (T))[2]= ((uchar*) &A)[2];\
    142. 

  142.                               ((uchar*) (T))[3]= ((uchar*) &A)[3]; }
    143. 

  143. 

  144. #define mi_float4get(V,M)   { float def_temp;\
    145. 

  145.                               ((uchar*) &def_temp)[0]= ((uchar*) (M))[0];\
    146. 

  146.                               ((uchar*) &def_temp)[1]= ((uchar*) (M))[1];\
    147. 

  147.                               ((uchar*) &def_temp)[2]= ((uchar*) (M))[2];\
    148. 

  148.                               ((uchar*) &def_temp)[3]= ((uchar*) (M))[3];\
    149. 

  149.                               (V)= def_temp; }
    150. 

  150. 

  151. #define mi_float8store(T,V) { ((uchar*) (T))[0]= ((uchar*) &V)[0];\
    152. 

  152.                               ((uchar*) (T))[1]= ((uchar*) &V)[1];\
    153. 

  153.                               ((uchar*) (T))[2]= ((uchar*) &V)[2];\
    154. 

  154.                               ((uchar*) (T))[3]= ((uchar*) &V)[3];\
    155. 

  155.                               ((uchar*) (T))[4]= ((uchar*) &V)[4];\
    156. 

  156.                               ((uchar*) (T))[5]= ((uchar*) &V)[5];\
    157. 

  157.                               ((uchar*) (T))[6]= ((uchar*) &V)[6];\
    158. 

  158.                               ((uchar*) (T))[7]= ((uchar*) &V)[7]; }
    159. 

  159. 

  160. #define mi_float8get(V,M)   { double def_temp;\
    161. 

  161.                               ((uchar*) &def_temp)[0]= ((uchar*) (M))[0];\
    162. 

  162.                               ((uchar*) &def_temp)[1]= ((uchar*) (M))[1];\
    163. 

  163.                               ((uchar*) &def_temp)[2]= ((uchar*) (M))[2];\
    164. 

  164.                               ((uchar*) &def_temp)[3]= ((uchar*) (M))[3];\
    165. 

  165.                               ((uchar*) &def_temp)[4]= ((uchar*) (M))[4];\
    166. 

  166.                               ((uchar*) &def_temp)[5]= ((uchar*) (M))[5];\
    167. 

  167.                               ((uchar*) &def_temp)[6]= ((uchar*) (M))[6];\
    168. 

  168.                               ((uchar*) &def_temp)[7]= ((uchar*) (M))[7]; \
    169. 

  169.                               (V)= def_temp; }
    170. 

  170. #else
    171. 

  171. 

  172. #define mi_float4store(T,A) { ((uchar*) (T))[0]= ((uchar*) &A)[3];\
    173. 

  173.                               ((uchar*) (T))[1]= ((uchar*) &A)[2];\
    174. 

  174.                               ((uchar*) (T))[2]= ((uchar*) &A)[1];\
    175. 

  175.                               ((uchar*) (T))[3]= ((uchar*) &A)[0]; }
    176. 

  176. 

  177. #define mi_float4get(V,M)   { float def_temp;\
    178. 

  178.                               ((uchar*) &def_temp)[0]= ((uchar*) (M))[3];\
    179. 

  179.                               ((uchar*) &def_temp)[1]= ((uchar*) (M))[2];\
    180. 

  180.                               ((uchar*) &def_temp)[2]= ((uchar*) (M))[1];\
    181. 

  181.                               ((uchar*) &def_temp)[3]= ((uchar*) (M))[0];\
    182. 

  182.                               (V)= def_temp; }
    183. 

  183. 

  184. #if defined(__FLOAT_WORD_ORDER) && (__FLOAT_WORD_ORDER == __BIG_ENDIAN)
    185. 

  185. #define mi_float8store(T,V) { ((uchar*) (T))[0]= ((uchar*) &V)[3];\
    186. 

  186.                               ((uchar*) (T))[1]= ((uchar*) &V)[2];\
    187. 

  187.                               ((uchar*) (T))[2]= ((uchar*) &V)[1];\
    188. 

  188.                               ((uchar*) (T))[3]= ((uchar*) &V)[0];\
    189. 

  189.                               ((uchar*) (T))[4]= ((uchar*) &V)[7];\
    190. 

  190.                               ((uchar*) (T))[5]= ((uchar*) &V)[6];\
    191. 

  191.                               ((uchar*) (T))[6]= ((uchar*) &V)[5];\
    192. 

  192.                               ((uchar*) (T))[7]= ((uchar*) &V)[4];}
    193. 

  193. 

  194. #define mi_float8get(V,M)   { double def_temp;\
    195. 

  195.                               ((uchar*) &def_temp)[0]= ((uchar*) (M))[3];\
    196. 

  196.                               ((uchar*) &def_temp)[1]= ((uchar*) (M))[2];\
    197. 

  197.                               ((uchar*) &def_temp)[2]= ((uchar*) (M))[1];\
    198. 

  198.                               ((uchar*) &def_temp)[3]= ((uchar*) (M))[0];\
    199. 

  199.                               ((uchar*) &def_temp)[4]= ((uchar*) (M))[7];\
    200. 

  200.                               ((uchar*) &def_temp)[5]= ((uchar*) (M))[6];\
    201. 

  201.                               ((uchar*) &def_temp)[6]= ((uchar*) (M))[5];\
    202. 

  202.                               ((uchar*) &def_temp)[7]= ((uchar*) (M))[4];\
    203. 

  203.                               (V)= def_temp; }
    204. 

  204. 

  205. #else
    206. 

  206. #define mi_float8store(T,V) { ((uchar*) (T))[0]= ((uchar*) &V)[7];\
    207. 

  207.                               ((uchar*) (T))[1]= ((uchar*) &V)[6];\
    208. 

  208.                               ((uchar*) (T))[2]= ((uchar*) &V)[5];\
    209. 

  209.                               ((uchar*) (T))[3]= ((uchar*) &V)[4];\
    210. 

  210.                               ((uchar*) (T))[4]= ((uchar*) &V)[3];\
    211. 

  211.                               ((uchar*) (T))[5]= ((uchar*) &V)[2];\
    212. 

  212.                               ((uchar*) (T))[6]= ((uchar*) &V)[1];\
    213. 

  213.                               ((uchar*) (T))[7]= ((uchar*) &V)[0];}
    214. 

  214. 

  215. #define mi_float8get(V,M)   { double def_temp;\
    216. 

  216.                               ((uchar*) &def_temp)[0]= ((uchar*) (M))[7];\
    217. 

  217.                               ((uchar*) &def_temp)[1]= ((uchar*) (M))[6];\
    218. 

  218.                               ((uchar*) &def_temp)[2]= ((uchar*) (M))[5];\
    219. 

  219.                               ((uchar*) &def_temp)[3]= ((uchar*) (M))[4];\
    220. 

  220.                               ((uchar*) &def_temp)[4]= ((uchar*) (M))[3];\
    221. 

  221.                               ((uchar*) &def_temp)[5]= ((uchar*) (M))[2];\
    222. 

  222.                               ((uchar*) &def_temp)[6]= ((uchar*) (M))[1];\
    223. 

  223.                               ((uchar*) &def_temp)[7]= ((uchar*) (M))[0];\
    224. 

  224.                               (V)= def_temp; }
    225. 

  225. #endif /* __FLOAT_WORD_ORDER */
    226. 

  226. #endif /* WORDS_BIGENDIAN */
    227. 

  227. 

  228. /* Fix to avoid warnings when sizeof(ha_rows) == sizeof(long) */
    229. 

  229. 

  230. #ifdef BIG_TABLES
    231. 

  231. #define mi_rowstore(T,A)    mi_int8store(T, A)
    232. 

  232. #define mi_rowkorr(T)       mi_uint8korr(T)
    233. 

  233. #else
    234. 

  234. #define mi_rowstore(T,A)    { mi_int4store(T, 0);\
    235. 

  235.                               mi_int4store(((uchar*) (T) + 4), A); }
    236. 

  236. #define mi_rowkorr(T)       mi_uint4korr((uchar*) (T) + 4)
    237. 

  237. #endif
    238. 

  238. 

  239. #if SIZEOF_OFF_T > 4
    240. 

  240. #define mi_sizestore(T,A)   mi_int8store(T, A)
    241. 

  241. #define mi_sizekorr(T)      mi_uint8korr(T)
    242. 

  242. #else
    243. 

  243. #define mi_sizestore(T,A)   { if ((A) == HA_OFFSET_ERROR)\
    244. 

  244.                                 memset((T), 255, 8);\
    245. 

  245.                               else { mi_int4store((T), 0);\
    246. 

  246.                                      mi_int4store(((T) + 4), A); }}
    247. 

  247. #define mi_sizekorr(T)      mi_uint4korr((uchar*) (T) + 4)
    248. 

  248. #endif
    249. 

  249. #endif /* MYISAMPACK_INCLUDED */
    250.