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/mysys/checksum.c | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 mysql/mysys/checksum.c (limited to 'mysql/mysys/checksum.c') diff --git a/mysql/mysys/checksum.c b/mysql/mysys/checksum.c new file mode 100644 index 0000000..87f3056 --- /dev/null +++ b/mysql/mysys/checksum.c @@ -0,0 +1,35 @@ +/* Copyright (c) 2000, 2010, 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 */ + + +#include +#include +#include + +/* + Calculate a long checksum for a memoryblock. + + SYNOPSIS + my_checksum() + crc start value for crc + pos pointer to memory block + length length of the block +*/ + +ha_checksum my_checksum(ha_checksum crc, const uchar *pos, size_t length) +{ + return (ha_checksum)crc32((uint)crc, pos, (uint)length); +} + -- cgit v1.1