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2e814d4702
Contains also
MDEV-10547: Test multi_update_innodb fails with InnoDB 5.7
The failure happened because 5.7 has changed the signature of
the bool handler::primary_key_is_clustered() const
virtual function ("const" was added). InnoDB was using the old
signature which caused the function not to be used.
MDEV-10550: Parallel replication lock waits/deadlock handling does not work with InnoDB 5.7
Fixed mutexing problem on lock_trx_handle_wait. Note that
rpl_parallel and rpl_optimistic_parallel tests still
fail.
MDEV-10156 : Group commit tests fail on 10.2 InnoDB (branch bb-10.2-jan)
Reason: incorrect merge
MDEV-10550: Parallel replication can't sync with master in InnoDB 5.7 (branch bb-10.2-jan)
Reason: incorrect merge
143 lines
3.2 KiB
Text
143 lines
3.2 KiB
Text
/*****************************************************************************
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Copyright (c) 1994, 2015, Oracle and/or its affiliates. All Rights Reserved.
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This program is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free Software
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Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA
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*****************************************************************************/
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/**************************************************************//**
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@file include/ut0ut.ic
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Various utilities
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Created 5/30/1994 Heikki Tuuri
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*******************************************************************/
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#include <algorithm>
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/** Calculate the minimum of two pairs.
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@param[out] min_hi MSB of the minimum pair
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@param[out] min_lo LSB of the minimum pair
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@param[in] a_hi MSB of the first pair
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@param[in] a_lo LSB of the first pair
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@param[in] b_hi MSB of the second pair
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@param[in] b_lo LSB of the second pair */
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UNIV_INLINE
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void
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ut_pair_min(
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ulint* min_hi,
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ulint* min_lo,
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ulint a_hi,
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ulint a_lo,
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ulint b_hi,
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ulint b_lo)
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{
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if (a_hi == b_hi) {
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*min_hi = a_hi;
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*min_lo = std::min(a_lo, b_lo);
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} else if (a_hi < b_hi) {
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*min_hi = a_hi;
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*min_lo = a_lo;
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} else {
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*min_hi = b_hi;
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*min_lo = b_lo;
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}
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}
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/******************************************************//**
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Compares two ulints.
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@return 1 if a > b, 0 if a == b, -1 if a < b */
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UNIV_INLINE
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int
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ut_ulint_cmp(
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/*=========*/
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ulint a, /*!< in: ulint */
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ulint b) /*!< in: ulint */
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{
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if (a < b) {
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return(-1);
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} else if (a == b) {
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return(0);
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} else {
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return(1);
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}
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}
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/** Compare two pairs of integers.
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@param[in] a_h more significant part of first pair
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@param[in] a_l less significant part of first pair
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@param[in] b_h more significant part of second pair
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@param[in] b_l less significant part of second pair
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@return comparison result of (a_h,a_l) and (b_h,b_l)
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@retval -1 if (a_h,a_l) is less than (b_h,b_l)
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@retval 0 if (a_h,a_l) is equal to (b_h,b_l)
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@retval 1 if (a_h,a_l) is greater than (b_h,b_l) */
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UNIV_INLINE
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int
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ut_pair_cmp(
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ulint a_h,
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ulint a_l,
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ulint b_h,
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ulint b_l)
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{
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if (a_h < b_h) {
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return(-1);
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}
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if (a_h > b_h) {
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return(1);
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}
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return(ut_ulint_cmp(a_l, b_l));
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}
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/*************************************************************//**
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Calculates fast the 2-logarithm of a number, rounded upward to an
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integer.
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@return logarithm in the base 2, rounded upward */
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UNIV_INLINE
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ulint
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ut_2_log(
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/*=====*/
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ulint n) /*!< in: number != 0 */
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{
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ulint res;
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res = 0;
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ut_ad(n > 0);
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n = n - 1;
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for (;;) {
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n = n / 2;
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if (n == 0) {
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break;
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}
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res++;
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}
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return(res + 1);
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}
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/*************************************************************//**
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Calculates 2 to power n.
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@return 2 to power n */
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UNIV_INLINE
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ulint
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ut_2_exp(
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/*=====*/
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ulint n) /*!< in: number */
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{
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return((ulint) 1 << n);
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}
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