ydb/library/cpp/threading/thread_local/generic.cpp, branch mainMirror of YDB github reposhttps://code.mastervirt.ru/ydb/atom?h=main2026-06-08T18:16:24ZImprove TGenericLocalValue, allow mixed thread-fiber-etc values2026-06-08T18:16:24Zkulikovkulikov@yandex-team.com2026-06-08T17:33:12Zurn:sha1:a6848417fed706ec4f89a589c2ea9aa54eb39829
Make generic local values more safe and usable:
- instead of factory, register fiber/coroutine-aware "GLS (general local storage) contexts";
- put up to 4 (normally no more than 2 -- threads and one coroutine implementation) different "tls" variables into one generic, choose correct one from current execution context;
- suitable version of variable will be constructed on demand (no dependency from first usage);
- improve unit test too.
commit_hash:8586846a6a775bd66dffcdf58263f78042be2480
Use generic thread-local value for kernel/groupattrs, crash context and eventlog scope2025-11-27T21:47:44Zkulikovkulikov@yandex-team.com2025-11-27T21:32:45Zurn:sha1:909e306757b2da405daed2e0838e11b65e033c1a
- fix StdThreadLocalImpl -- make static state refcounted, there is no guarantee that static fields will outlive threads or TThreadLocalValues;
- replace thread local values to generic local storage value in some places;
- call runtime Init and replace local values factory;
- don't disable NCurrentThreadEventlog for ytxx runtime, it should now work;
- ensure generic local storage values are allocated after runtime init;
- use function-scope static variables to prevent issues with order of construction and destruction;
- basesearch now almost works with coroutines (with NProfile disabled).
commit_hash:7fde81591b0dbc3a53b8d1cb11bb96930a2e9a80
Switch generic tls to thread_local-based impl2025-11-25T23:53:30Zkulikovkulikov@yandex-team.com2025-11-25T23:23:33Zurn:sha1:61867eee332aed34a56b71e57a40a6c52e712d36
After this, it becomes possible to zerodiff replace thread\_local variables with generic local values. Replace default TThreadLocal with generic will lead to it's destruction on thread exit, but it seems to be more correct behavior (e.g., avoid leaks on thread pool restart).
commit_hash:6e5a0908ca239c1bac3ce6ba47de9e53290d6211
Generic thread (yt fiber, etc) local storage2025-11-18T13:08:27Zkulikovkulikov@yandex-team.com2025-11-18T12:48:30Zurn:sha1:7b6a73defecf54640a9de7e0d9da969b2273295d
commit_hash:cc357d273b7ce5c911d194dd51fae5668877693c