aboutsummaryrefslogtreecommitdiff
path: root/mysql/myisampack.h
diff options
context:
space:
mode:
Diffstat (limited to 'mysql/myisampack.h')
-rw-r--r--mysql/myisampack.h234
1 files changed, 234 insertions, 0 deletions
diff --git a/mysql/myisampack.h b/mysql/myisampack.h
new file mode 100644
index 0000000..48c3f67
--- /dev/null
+++ b/mysql/myisampack.h
@@ -0,0 +1,234 @@
+#ifndef MYISAMPACK_INCLUDED
+#define MYISAMPACK_INCLUDED
+
+/* Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
+
+ 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) (((uchar*) (A))[1])) +\
+ ((int16) ((int16) ((char*) (A))[0]) << 8)))
+#define mi_sint3korr(A) ((int32) (((((uchar*) (A))[0]) & 128) ? \
+ (((uint32) 255L << 24) | \
+ (((uint32) ((uchar*) (A))[0]) << 16) |\
+ (((uint32) ((uchar*) (A))[1]) << 8) | \
+ ((uint32) ((uchar*) (A))[2])) : \
+ (((uint32) ((uchar*) (A))[0]) << 16) |\
+ (((uint32) ((uchar*) (A))[1]) << 8) | \
+ ((uint32) ((uchar*) (A))[2])))
+#define mi_sint4korr(A) ((int32) (((int32) (((uchar*) (A))[3])) +\
+ ((int32) (((uchar*) (A))[2]) << 8) +\
+ ((int32) (((uchar*) (A))[1]) << 16) +\
+ ((int32) ((int16) ((char*) (A))[0]) << 24)))
+#define mi_sint8korr(A) ((longlong) mi_uint8korr(A))
+#define mi_uint2korr(A) ((uint16) (((uint16) (((uchar*) (A))[1])) +\
+ ((uint16) (((uchar*) (A))[0]) << 8)))
+#define mi_uint3korr(A) ((uint32) (((uint32) (((uchar*) (A))[2])) +\
+ (((uint32) (((uchar*) (A))[1])) << 8) +\
+ (((uint32) (((uchar*) (A))[0])) << 16)))
+#define mi_uint4korr(A) ((uint32) (((uint32) (((uchar*) (A))[3])) +\
+ (((uint32) (((uchar*) (A))[2])) << 8) +\
+ (((uint32) (((uchar*) (A))[1])) << 16) +\
+ (((uint32) (((uchar*) (A))[0])) << 24)))
+#define mi_uint5korr(A) ((ulonglong)(((uint32) (((uchar*) (A))[4])) +\
+ (((uint32) (((uchar*) (A))[3])) << 8) +\
+ (((uint32) (((uchar*) (A))[2])) << 16) +\
+ (((uint32) (((uchar*) (A))[1])) << 24)) +\
+ (((ulonglong) (((uchar*) (A))[0])) << 32))
+#define mi_uint6korr(A) ((ulonglong)(((uint32) (((uchar*) (A))[5])) +\
+ (((uint32) (((uchar*) (A))[4])) << 8) +\
+ (((uint32) (((uchar*) (A))[3])) << 16) +\
+ (((uint32) (((uchar*) (A))[2])) << 24)) +\
+ (((ulonglong) (((uint32) (((uchar*) (A))[1])) +\
+ (((uint32) (((uchar*) (A))[0]) << 8)))) <<\
+ 32))
+#define mi_uint7korr(A) ((ulonglong)(((uint32) (((uchar*) (A))[6])) +\
+ (((uint32) (((uchar*) (A))[5])) << 8) +\
+ (((uint32) (((uchar*) (A))[4])) << 16) +\
+ (((uint32) (((uchar*) (A))[3])) << 24)) +\
+ (((ulonglong) (((uint32) (((uchar*) (A))[2])) +\
+ (((uint32) (((uchar*) (A))[1])) << 8) +\
+ (((uint32) (((uchar*) (A))[0])) << 16))) <<\
+ 32))
+#define mi_uint8korr(A) ((ulonglong)(((uint32) (((uchar*) (A))[7])) +\
+ (((uint32) (((uchar*) (A))[6])) << 8) +\
+ (((uint32) (((uchar*) (A))[5])) << 16) +\
+ (((uint32) (((uchar*) (A))[4])) << 24)) +\
+ (((ulonglong) (((uint32) (((uchar*) (A))[3])) +\
+ (((uint32) (((uchar*) (A))[2])) << 8) +\
+ (((uint32) (((uchar*) (A))[1])) << 16) +\
+ (((uint32) (((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]= ((uchar*) (M))[0];\
+ ((uchar*) &def_temp)[1]= ((uchar*) (M))[1];\
+ ((uchar*) &def_temp)[2]= ((uchar*) (M))[2];\
+ ((uchar*) &def_temp)[3]= ((uchar*) (M))[3];\
+ (V)= def_temp; }
+
+#define mi_float8store(T,V) { ((uchar*) (T))[0]= ((uchar*) &V)[0];\
+ ((uchar*) (T))[1]= ((uchar*) &V)[1];\
+ ((uchar*) (T))[2]= ((uchar*) &V)[2];\
+ ((uchar*) (T))[3]= ((uchar*) &V)[3];\
+ ((uchar*) (T))[4]= ((uchar*) &V)[4];\
+ ((uchar*) (T))[5]= ((uchar*) &V)[5];\
+ ((uchar*) (T))[6]= ((uchar*) &V)[6];\
+ ((uchar*) (T))[7]= ((uchar*) &V)[7]; }
+
+#define mi_float8get(V,M) { double def_temp;\
+ ((uchar*) &def_temp)[0]= ((uchar*) (M))[0];\
+ ((uchar*) &def_temp)[1]= ((uchar*) (M))[1];\
+ ((uchar*) &def_temp)[2]= ((uchar*) (M))[2];\
+ ((uchar*) &def_temp)[3]= ((uchar*) (M))[3];\
+ ((uchar*) &def_temp)[4]= ((uchar*) (M))[4];\
+ ((uchar*) &def_temp)[5]= ((uchar*) (M))[5];\
+ ((uchar*) &def_temp)[6]= ((uchar*) (M))[6];\
+ ((uchar*) &def_temp)[7]= ((uchar*) (M))[7]; \
+ (V)= def_temp; }
+#else
+
+#define mi_float4store(T,A) { ((uchar*) (T))[0]= ((uchar*) &A)[3];\
+ ((uchar*) (T))[1]= ((uchar*) &A)[2];\
+ ((uchar*) (T))[2]= ((uchar*) &A)[1];\
+ ((uchar*) (T))[3]= ((uchar*) &A)[0]; }
+
+#define mi_float4get(V,M) { float def_temp;\
+ ((uchar*) &def_temp)[0]= ((uchar*) (M))[3];\
+ ((uchar*) &def_temp)[1]= ((uchar*) (M))[2];\
+ ((uchar*) &def_temp)[2]= ((uchar*) (M))[1];\
+ ((uchar*) &def_temp)[3]= ((uchar*) (M))[0];\
+ (V)= def_temp; }
+
+#if defined(__FLOAT_WORD_ORDER) && (__FLOAT_WORD_ORDER == __BIG_ENDIAN)
+#define mi_float8store(T,V) { ((uchar*) (T))[0]= ((uchar*) &V)[3];\
+ ((uchar*) (T))[1]= ((uchar*) &V)[2];\
+ ((uchar*) (T))[2]= ((uchar*) &V)[1];\
+ ((uchar*) (T))[3]= ((uchar*) &V)[0];\
+ ((uchar*) (T))[4]= ((uchar*) &V)[7];\
+ ((uchar*) (T))[5]= ((uchar*) &V)[6];\
+ ((uchar*) (T))[6]= ((uchar*) &V)[5];\
+ ((uchar*) (T))[7]= ((uchar*) &V)[4];}
+
+#define mi_float8get(V,M) { double def_temp;\
+ ((uchar*) &def_temp)[0]= ((uchar*) (M))[3];\
+ ((uchar*) &def_temp)[1]= ((uchar*) (M))[2];\
+ ((uchar*) &def_temp)[2]= ((uchar*) (M))[1];\
+ ((uchar*) &def_temp)[3]= ((uchar*) (M))[0];\
+ ((uchar*) &def_temp)[4]= ((uchar*) (M))[7];\
+ ((uchar*) &def_temp)[5]= ((uchar*) (M))[6];\
+ ((uchar*) &def_temp)[6]= ((uchar*) (M))[5];\
+ ((uchar*) &def_temp)[7]= ((uchar*) (M))[4];\
+ (V)= def_temp; }
+
+#else
+#define mi_float8store(T,V) { ((uchar*) (T))[0]= ((uchar*) &V)[7];\
+ ((uchar*) (T))[1]= ((uchar*) &V)[6];\
+ ((uchar*) (T))[2]= ((uchar*) &V)[5];\
+ ((uchar*) (T))[3]= ((uchar*) &V)[4];\
+ ((uchar*) (T))[4]= ((uchar*) &V)[3];\
+ ((uchar*) (T))[5]= ((uchar*) &V)[2];\
+ ((uchar*) (T))[6]= ((uchar*) &V)[1];\
+ ((uchar*) (T))[7]= ((uchar*) &V)[0];}
+
+#define mi_float8get(V,M) { double def_temp;\
+ ((uchar*) &def_temp)[0]= ((uchar*) (M))[7];\
+ ((uchar*) &def_temp)[1]= ((uchar*) (M))[6];\
+ ((uchar*) &def_temp)[2]= ((uchar*) (M))[5];\
+ ((uchar*) &def_temp)[3]= ((uchar*) (M))[4];\
+ ((uchar*) &def_temp)[4]= ((uchar*) (M))[3];\
+ ((uchar*) &def_temp)[5]= ((uchar*) (M))[2];\
+ ((uchar*) &def_temp)[6]= ((uchar*) (M))[1];\
+ ((uchar*) &def_temp)[7]= ((uchar*) (M))[0];\
+ (V)= def_temp; }
+#endif /* __FLOAT_WORD_ORDER */
+#endif /* WORDS_BIGENDIAN */
+
+#define mi_rowstore(T,A) mi_int8store(T, A)
+#define mi_rowkorr(T) mi_uint8korr(T)
+
+#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)\
+ memset((T), 255, 8);\
+ else { mi_int4store((T), 0);\
+ mi_int4store(((T) + 4), A); }}
+#define mi_sizekorr(T) mi_uint4korr((uchar*) (T) + 4)
+#endif
+#endif /* MYISAMPACK_INCLUDED */
generated by cgit v1.1 at 2024-04-20 10:23:39 +0000