Mike Ash d0017555c7 [Runtime] Faster dynamic exclusivity checking implemented in Swift. ...

Replace C++ implementation of swift_beginAccess and swift_endAccess with (almost) pure Swift implementation. Helpers remain in C++ for TLS, getting return addresses, and raising a fatal error on violations.

This change also moves the exclusivity access set head from the shared SwiftTLSContext structure to a dedicated TLS key. This improves performance, which is important for exclusivity checking. This is particularly the case where we can inline TLS access with a constant key, as on Darwin ARM64.

The code that bridges exclusivity tracking into Concurrency remains in C++. The new Swift implementation exposes a few helpers for it to use as a replacement for directly manipulating the C++ implementation.

rdar://161122309

2026-01-14 12:23:55 -05:00

..

Impl

[Runtime] Faster dynamic exclusivity checking implemented in Swift.

2026-01-14 12:23:55 -05:00

ConditionVariable.h

[Threading] Add ConditionVariable support.

2022-09-27 16:21:13 +01:00

Errors.h

[Threading] Put everything through git clang-format.

2022-06-07 07:39:53 +01:00

Impl.h

[Threading] Move stack bounds fetching into the threading library.

2022-06-07 07:39:53 +01:00

Mutex.h

Fix a bunch of RecursiveMutex code using plain mutex types.

2025-03-27 14:31:22 -04:00

Once.h

[Threading] Add the ability to use any C++ callable in swift::once().

2022-06-07 07:39:53 +01:00

ScopedLock.h

[Threading] Add ConditionVariable support.

2022-09-27 16:21:13 +01:00

Thread.h

Migrate llvm::Optional to std::optional

2024-02-21 11:20:06 -08:00

ThreadLocalStorage.h

[Runtime] Faster dynamic exclusivity checking implemented in Swift.

2026-01-14 12:23:55 -05:00

ThreadSanitizer.h

[Freestanding] Remove uses of stat() and dlsym().

2023-06-23 17:05:59 +01:00

TLSKeys.h

[Runtime] Faster dynamic exclusivity checking implemented in Swift.

2026-01-14 12:23:55 -05:00