metrics have been added

1 files changed, 51 insertions, 0 deletions

diff --git a/contrib/libs/libmysql_r/mysys/checksum.cc b/contrib/libs/libmysql_r/mysys/checksum.cc
new file mode 100644
index 0000000000..44784317a1
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+++ b/contrib/libs/libmysql_r/mysys/checksum.cc
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+/* Copyright (c) 2000, 2017, 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, version 2.0,
+   as published by the Free Software Foundation.
+
+   This program is also distributed with certain software (including
+   but not limited to OpenSSL) that is licensed under separate terms,
+   as designated in a particular file or component or in included license
+   documentation.  The authors of MySQL hereby grant you an additional
+   permission to link the program and your derivative works with the
+   separately licensed software that they have included with MySQL.
+
+   Without limiting anything contained in the foregoing, this file,
+   which is part of C Driver for MySQL (Connector/C), is also subject to the
+   Universal FOSS Exception, version 1.0, a copy of which can be found at
+   http://oss.oracle.com/licenses/universal-foss-exception.
+
+   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, version 2.0, 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 */
+
+/**
+  @file mysys/checksum.cc
+*/
+
+#include <stddef.h>
+#include <sys/types.h>
+#include <zlib.h>
+
+#include "my_inttypes.h"
+#include "my_sys.h"
+
+/*
+  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);
+}