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anand76 eac6b6d0cd Ignore async_io ReadOption if FileSystem doesn't support it (#11296) 
Summary:
In PosixFileSystem, IO uring support is opt-in. If the support is not enabled by the user, then ignore the async_io ReadOption in MultiGet and iteration at the top, rather than follow the async_io codepath and transparently switch to sync IO at the FileSystem layer.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11296

Test Plan: Add new unit tests

Reviewed By: akankshamahajan15

Differential Revision: D44045776

Pulled By: anand1976

fbshipit-source-id: a0881bf763ca2fde50b84063d0068bb521edd8b9
 		2023-03-17 14:57:09 -07:00
..
win Ignore async_io ReadOption if FileSystem doesn't support it (#11296) 2023-03-17 14:57:09 -07:00
README reverting disastrous MOE commit, returning to r21 2011-04-19 23:11:15 +00:00
jemalloc_helper.h Fix FreeBSD building (#10575) 2022-08-28 00:05:51 -07:00
lang.h clang format files under port/ (#10849) 2022-10-24 16:56:01 -07:00
likely.h clang format files under port/ (#10849) 2022-10-24 16:56:01 -07:00
malloc.h Charge block cache for cache internal usage (#5797) 2019-09-16 15:26:21 -07:00
mmap.cc Improve / refactor anonymous mmap capabilities (#10810) 2022-10-17 17:10:16 -07:00
mmap.h Fix include of windows.h in mmap.h (#10885) 2022-10-26 18:07:57 -07:00
port.h Change RocksDB License 2017-07-15 16:11:23 -07:00
port_dirent.h clang format files under port/ (#10849) 2022-10-24 16:56:01 -07:00
port_example.h Replace most typedef with using= (#8751) 2021-09-07 11:31:59 -07:00
port_posix.cc clang format files under port/ (#10849) 2022-10-24 16:56:01 -07:00
port_posix.h remove dependency on options.h for port_posix.h andport_win.h (#11214) 2023-02-13 02:21:38 -08:00
stack_trace.cc Default print stack traces with GDB on Linux (#11272) 2023-03-05 08:21:57 -08:00
stack_trace.h Print stack traces on frozen tests in CI (#10828) 2022-10-18 00:35:35 -07:00
sys_time.h clang format files under port/ (#10849) 2022-10-24 16:56:01 -07:00
util_logger.h Use EnvLogger instead of PosixLogger (#10436) 2022-08-01 14:37:18 -07:00
xpress.h Change RocksDB License 2017-07-15 16:11:23 -07:00

README 

This directory contains interfaces and implementations that isolate the
rest of the package from platform details.

Code in the rest of the package includes "port.h" from this directory.
"port.h" in turn includes a platform specific "port_<platform>.h" file
that provides the platform specific implementation.

See port_posix.h for an example of what must be provided in a platform
specific header file.