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myisampack.h
#ifndef MYISAMPACK_INCLUDED #define MYISAMPACK_INCLUDED /* Copyright (c) 2000-2002, 2004 MySQL AB, 2009 Sun Microsystems, Inc. Copyright (c) 2020, MariaDB Corporation. 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 02110-1335 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) ((uint16) ((const uchar*) (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) (((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_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))) #ifndef HAVE_mi_uint5korr #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)) #endif /* HAVE_mi_uint5korr */ #ifndef HAVE_mi_uint6korr #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)) #endif /* HAVE_mi_uint6korr */ #ifndef HAVE_mi_uint7korr #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)) #endif /* HAVE_mi_uint7korr */ #ifndef HAVE_mi_uint8korr #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)) #endif /* HAVE_mi_uint8korr */ /* 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 */
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