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Marko Mäkelä a87bb96ecb MDEV-36234: Add innodb_linux_aio 
This controls which linux implementation to use for
innodb_use_native_aio=ON.

innodb_linux_aio=auto is equivalent to innodb_linux_aio=io_uring when
it is available, and falling back to innodb_linux_aio=aio when not.

Debian packaging is no longer aio exclusive or uring, so
for those older Debian or Ubuntu releases, its a remove_uring directive.
For more recent releases, add mandatory liburing for consistent packaging.

WITH_LIBAIO is now an independent option from WITH_URING.

LINUX_NATIVE_AIO preprocessor constant is renamed to HAVE_LIBAIO,
analogous to existing HAVE_URING.

tpool::is_aio_supported(): A common feature check.

is_linux_native_aio_supported(): Remove. This had originally been added in
mysql/mysql-server@0da310b69d in 2012
to fix an issue where io_submit() on CentOS 5.5 would return EINVAL
for a /tmp/#sql*.ibd file associated with CREATE TEMPORARY TABLE.
But, starting with commit 2e814d4702 InnoDB
temporary tables will be written to innodb_temp_data_file_path.
The 2012 commit said that the error could occur on "old kernels".
Any GNU/Linux distribution that we currently support should be based
on a newer Linux kernel; for example, Red Hat Enterprise Linux 7
was released in 2014.

tpool::create_linux_aio(): Wraps the Linux implementations:
create_libaio() and create_liburing(), each defined in separate
compilation units (aio_linux.cc, aio_libaio.cc, aio_liburing.cc).

The CMake definitions are simplified using target_sources() and
target_compile_definitions(), all available since CMake 2.8.12.
With this change, there is no need to include ${CMAKE_SOURCE_DIR}/tpool
or add TPOOL_DEFINES flags anymore, target_link_libraries(lib tpool)
does all that.

This is joint work with Daniel Black and Vladislav Vaintroub.
2025-06-23 13:51:52 +03:00
..
examples MDEV-33091 pcre2 headers aren't found on Solaris 2024-09-05 12:14:06 +10:00
client_settings.h Merge 10.1 into 10.2 2019-05-13 17:54:04 +03:00
CMakeLists.txt MDEV-36234: Add innodb_linux_aio 2025-06-23 13:51:52 +03:00
emb_qcache.cc MDEV-27595 Backport SQL service, introduced by MDEV-19275. 2023-11-05 23:35:32 +04:00
emb_qcache.h MDEV-19275 Provide SQL service to plugins. 2020-08-14 21:04:25 +04:00
embedded_priv.h Fixed crash in connect.misc with embedded server 2024-02-27 14:55:47 +02:00
lib_sql.cc Fixed memory leaks in embedded server and mysqltest 2024-04-05 12:40:49 +02:00
libmysql.c Merge branch '10.5' into 10.6 2025-01-29 11:17:38 +01:00
libmysqld.c Fixed crash in connect.misc with embedded server 2024-02-27 14:55:47 +02:00
libmysqld.def merge with 5.3 2011-10-19 21:45:18 +02:00
libmysqld.rc
resource.h