mariadb/cmake/lz4.cmake
Jan Lindström f302a3cf9d MDEV-12593: InnoDB page compression should use lz4_compress_default if
available

lz4.cmake: Check if shared or static lz4 library has LZ4_compress_default
function and if it has define HAVE_LZ4_COMPRESS_DEFAULT.

fil_compress_page: If HAVE_LZ4_COMPRESS_DEFAULT is defined use
LZ4_compress_default function for compression if not use
LZ4_compress_limitedOutput function.

Introduced a innodb-page-compression.inc file for page compression
tests that will also search .ibd file to verify that pages
are compressed (i.e. used search string is not found). Modified
page compression tests to use this file.

Note that snappy method is not included because of MDEV-12615
InnoDB page compression method snappy mostly does not compress pages
that will be fixed on different commit.
2017-05-18 09:29:44 +03:00

54 lines
2.2 KiB
CMake

# Copyright (C) 2014, SkySQL Ab. 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
SET(WITH_INNODB_LZ4 AUTO CACHE STRING
"Build with lz4. Possible values are 'ON', 'OFF', 'AUTO' and default is 'AUTO'")
MACRO (MYSQL_CHECK_LZ4)
IF (WITH_INNODB_LZ4 STREQUAL "ON" OR WITH_INNODB_LZ4 STREQUAL "AUTO")
CHECK_INCLUDE_FILES(lz4.h HAVE_LZ4_H)
CHECK_LIBRARY_EXISTS(lz4 LZ4_compress_limitedOutput "" HAVE_LZ4_SHARED_LIB)
CHECK_LIBRARY_EXISTS(lz4 LZ4_compress_default "" HAVE_LZ4_COMPRESS_DEFAULT)
IF ((HAVE_LZ4_SHARED_LIB OR HAVE_LZ4_COMPRESS_DEFAULT) AND HAVE_LZ4_H)
IF (HAVE_LZ4_COMPRESS_DEFAULT)
ADD_DEFINITIONS(-DHAVE_LZ4_COMPRESS_DEFAULT=1)
ENDIF()
ADD_DEFINITIONS(-DHAVE_LZ4=1)
LINK_LIBRARIES(lz4)
ELSE()
IF (WITH_INNODB_LZ4 STREQUAL "ON")
MESSAGE(FATAL_ERROR "Required lz4 library is not found")
ENDIF()
ENDIF()
ENDIF()
ENDMACRO()
MACRO (MYSQL_CHECK_LZ4_STATIC)
IF (WITH_INNODB_LZ4 STREQUAL "ON" OR WITH_INNODB_LZ4 STREQUAL "AUTO")
CHECK_INCLUDE_FILES(lz4.h HAVE_LZ4_H)
CHECK_LIBRARY_EXISTS(liblz4.a LZ4_compress_limitedOutput "" HAVE_LZ4_LIB)
CHECK_LIBRARY_EXISTS(liblz4.a LZ4_compress_default "" HAVE_LZ4_COMPRESS_DEFAULT)
IF ((HAVE_LZ4_LIB OR HAVE_LZ4_COMPRESS_DEFAULT) AND HAVE_LZ4_H)
IF (HAVE_LZ4_COMPRESS_DEFAULT)
ADD_DEFINITIONS(-DHAVE_LZ4_COMPRESS_DEFAULT=1)
ENDIF()
ADD_DEFINITIONS(-DHAVE_LZ4=1)
LINK_LIBRARIES(liblz4.a)
ELSE()
IF (WITH_INNODB_LZ4 STREQUAL "ON")
MESSAGE(FATAL_ERROR "Required lz4 library is not found")
ENDIF()
ENDIF()
ENDIF()
ENDMACRO()