From 354bb40e75d94466e91fe6960523612c9d17ccfb Mon Sep 17 00:00:00 2001 From: Karen Arutyunov Date: Thu, 2 Nov 2017 23:11:29 +0300 Subject: Add implementation --- mysql/my_byteorder.h | 213 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 213 insertions(+) create mode 100644 mysql/my_byteorder.h (limited to 'mysql/my_byteorder.h') diff --git a/mysql/my_byteorder.h b/mysql/my_byteorder.h new file mode 100644 index 0000000..daedd62 --- /dev/null +++ b/mysql/my_byteorder.h @@ -0,0 +1,213 @@ +#ifndef MY_BYTEORDER_INCLUDED +#define MY_BYTEORDER_INCLUDED + +/* Copyright (c) 2001, 2014, 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 */ + + +/* + Functions for reading and storing in machine independent + format (low byte first). There are 'korr' (assume 'corrector') variants + for integer types, but 'get' (assume 'getter') for floating point types. +*/ +#if defined(__i386__) || defined(_WIN32) || defined(__x86_64__) +#include "byte_order_generic_x86.h" +#else +#include "byte_order_generic.h" +#endif + +static inline int32 sint3korr(const uchar *A) +{ + return + ((int32) (((A[2]) & 128) ? + (((uint32) 255L << 24) | + (((uint32) A[2]) << 16) | + (((uint32) A[1]) << 8) | + ((uint32) A[0])) : + (((uint32) A[2]) << 16) | + (((uint32) A[1]) << 8) | + ((uint32) A[0]))) + ; +} + +static inline uint32 uint3korr(const uchar *A) +{ + return + (uint32) (((uint32) (A[0])) + + (((uint32) (A[1])) << 8) + + (((uint32) (A[2])) << 16)) + ; +} + +static inline ulonglong uint5korr(const uchar *A) +{ + return + ((ulonglong)(((uint32) (A[0])) + + (((uint32) (A[1])) << 8) + + (((uint32) (A[2])) << 16) + + (((uint32) (A[3])) << 24)) + + (((ulonglong) (A[4])) << 32)) + ; +} + +static inline ulonglong uint6korr(const uchar *A) +{ + return + ((ulonglong)(((uint32) (A[0])) + + (((uint32) (A[1])) << 8) + + (((uint32) (A[2])) << 16) + + (((uint32) (A[3])) << 24)) + + (((ulonglong) (A[4])) << 32) + + (((ulonglong) (A[5])) << 40)) + ; +} + +static inline void int3store(uchar *T, uint A) +{ + *(T)= (uchar) (A); + *(T+1)= (uchar) (A >> 8); + *(T+2)= (uchar) (A >> 16); +} + +static inline void int5store(uchar *T, ulonglong A) +{ + *(T)= (uchar) (A); + *(T+1)= (uchar) (A >> 8); + *(T+2)= (uchar) (A >> 16); + *(T+3)= (uchar) (A >> 24); + *(T+4)= (uchar) (A >> 32); +} + +static inline void int6store(uchar *T, ulonglong A) +{ + *(T)= (uchar) (A); + *(T+1)= (uchar) (A >> 8); + *(T+2)= (uchar) (A >> 16); + *(T+3)= (uchar) (A >> 24); + *(T+4)= (uchar) (A >> 32); + *(T+5)= (uchar) (A >> 40); +} + +#ifdef __cplusplus + +static inline int16 sint2korr(const char *pT) +{ + return sint2korr(static_cast(static_cast(pT))); +} + +static inline uint16 uint2korr(const char *pT) +{ + return uint2korr(static_cast(static_cast(pT))); +} + +static inline uint32 uint3korr(const char *pT) +{ + return uint3korr(static_cast(static_cast(pT))); +} + +static inline int32 sint3korr(const char *pT) +{ + return sint3korr(static_cast(static_cast(pT))); +} + +static inline uint32 uint4korr(const char *pT) +{ + return uint4korr(static_cast(static_cast(pT))); +} + +static inline int32 sint4korr(const char *pT) +{ + return sint4korr(static_cast(static_cast(pT))); +} + +static inline ulonglong uint6korr(const char *pT) +{ + return uint6korr(static_cast(static_cast(pT))); +} + +static inline ulonglong uint8korr(const char *pT) +{ + return uint8korr(static_cast(static_cast(pT))); +} + +static inline longlong sint8korr(const char *pT) +{ + return sint8korr(static_cast(static_cast(pT))); +} + + +static inline void int2store(char *pT, uint16 A) +{ + int2store(static_cast(static_cast(pT)), A); +} + +static inline void int3store(char *pT, uint A) +{ + int3store(static_cast(static_cast(pT)), A); +} + +static inline void int4store(char *pT, uint32 A) +{ + int4store(static_cast(static_cast(pT)), A); +} + +static inline void int5store(char *pT, ulonglong A) +{ + int5store(static_cast(static_cast(pT)), A); +} + +static inline void int6store(char *pT, ulonglong A) +{ + int6store(static_cast(static_cast(pT)), A); +} + +static inline void int8store(char *pT, ulonglong A) +{ + int8store(static_cast(static_cast(pT)), A); +} + +#endif /* __cplusplus */ + +/* + Functions for reading and storing in machine format from/to + short/long to/from some place in memory V should be a variable + and M a pointer to byte. +*/ +#ifdef WORDS_BIGENDIAN +#include "big_endian.h" +#else +#include "little_endian.h" +#endif + +#ifdef __cplusplus + +static inline void float4store(char *V, float M) +{ + float4store(static_cast(static_cast(V)), M); +} + +static inline void float8get(double *V, const char *M) +{ + float8get(V, static_cast(static_cast(M))); +} + +static inline void float8store(char *V, double M) +{ + float8store(static_cast(static_cast(V)), M); +} + +#endif /* __cplusplus */ + +#endif /* MY_BYTEORDER_INCLUDED */ -- cgit v1.1