delta/cpython-git.git/Python/thread_nt.h, branch enum-lost-fixes

bpo-41299: Reduce lag in Windows threading timeouts by using a higher precision time source (GH-26568) (GH-26580)

2021-06-20T20:12:27+00:00

(cherry picked from commit 449e6f0ef395231e3abe467f910b02d7f075c27f)

Co-authored-by: Ryan Hileman 

Co-authored-by: Ryan Hileman

bpo-40268: Rename _PyInterpreterState_GET_UNSAFE() (GH-19509)

2020-04-14T13:14:01+00:00

Rename _PyInterpreterState_GET_UNSAFE() to _PyInterpreterState_GET()
for consistency with _PyThreadState_GET() and to have a shorter name
(help to fit into 80 columns).

Add also "assert(tstate != NULL);" to the function.

bpo-40268: Include explicitly pycore_interp.h (GH-19505)

2020-04-14T12:26:24+00:00

pycore_pystate.h no longer includes pycore_interp.h:
it's now included explicitly in files accessing PyInterpreterState.

bpo-39847: EnterNonRecursiveMutex() uses GetTickCount64() (GH-18780)

2020-03-11T23:39:02+00:00

The 32-bit (49-day) TickCount relied on in EnterNonRecursiveMutex can overflow
in the gap between the 'target' time and the 'now' time WaitForSingleObjectEx
returns, causing the loop to think it needs to wait another 49 days. This is
most likely to happen when the machine is hibernated during
WaitForSingleObjectEx.

This makes acquiring a lock/event/etc from the _thread or threading module
appear to never timeout.

Replace with GetTickCount64 - this is OK now Python no longer supports XP which
lacks it, and is in use for time.monotonic().

Co-authored-by: And Clover

bpo-36084: Add native thread ID (TID) to threading.Thread (GH-13463)

2019-05-22T15:43:16+00:00

Add native thread ID (TID) to threading.Thread objects
(supported platforms: Windows, FreeBSD, Linux, macOS).

Revert "bpo-36084: Add native thread ID to threading.Thread objects (GH-11993)" (GH-13458)

2019-05-21T10:44:57+00:00

This reverts commit 4959c33d2555b89b494c678d99be81a65ee864b0.

bpo-36084: Add native thread ID to threading.Thread objects (GH-11993)

2019-05-12T17:08:24+00:00

bpo-36475: Make PyThread_exit_thread with _Py_NO_RETURN (GH-13068)

2019-05-04T15:48:05+00:00

bpo-33316: PyThread_release_lock always fails (GH-6541)

2019-02-02T16:22:55+00:00

Use correct interpretation of return value from APIs.

bpo-35081: Add _PyThreadState_GET() internal macro (GH-10266)

2018-11-01T00:51:40+00:00

If Py_BUILD_CORE is defined, the PyThreadState_GET() macro access
_PyRuntime which comes from the internal pycore_state.h header.
Public headers must not require internal headers.

Move PyThreadState_GET() and _PyInterpreterState_GET_UNSAFE() from
Include/pystate.h to Include/internal/pycore_state.h, and rename
PyThreadState_GET() to _PyThreadState_GET() there.

The PyThreadState_GET() macro of pystate.h is now redefined when
pycore_state.h is included, to use the fast _PyThreadState_GET().

Changes:

* Add _PyThreadState_GET() macro
* Replace "PyThreadState_GET()->interp" with
  _PyInterpreterState_GET_UNSAFE()
* Replace PyThreadState_GET() with _PyThreadState_GET() in internal C
  files (compiled with Py_BUILD_CORE defined), but keep
  PyThreadState_GET() in the public header files.
* _testcapimodule.c: replace PyThreadState_GET() with
  PyThreadState_Get(); the module is not compiled with Py_BUILD_CORE
  defined.
* pycore_state.h now requires Py_BUILD_CORE to be defined.