delta/cpython-git.git/Include/cpython, branch master

Fix typos in the Include directory (GH-28745)

2021-10-06T18:32:38+00:00

bpo-40116: Add insertion order bit-vector to dict values to allow dicts to share keys more freely. (GH-28520)

2021-10-06T12:19:53+00:00

bpo-41710: Add private _PyDeadline_Get() function (GH-28674)

2021-10-01T11:29:25+00:00

Add a private C API for deadlines: add _PyDeadline_Init() and
_PyDeadline_Get() functions.

* Add _PyTime_Add() and _PyTime_Mul() functions which compute t1+t2
  and t1*t2 and clamp the result on overflow.
* _PyTime_MulDiv() now uses _PyTime_Add() and _PyTime_Mul().

bpo-41710: Document _PyTime_t API in pytime.h (GH-28647)

2021-09-30T09:23:03+00:00

bpo-41710: PyThread_acquire_lock_timed() clamps the timout (GH-28643)

2021-09-30T08:16:51+00:00

PyThread_acquire_lock_timed() now clamps the timeout into the
[_PyTime_MIN; _PyTime_MAX] range (_PyTime_t type) if it is too large,
rather than calling Py_FatalError() which aborts the process.

PyThread_acquire_lock_timed() no longer uses
MICROSECONDS_TO_TIMESPEC() to compute sem_timedwait() argument, but
_PyTime_GetSystemClock() and _PyTime_AsTimespec_truncate().

Fix _thread.TIMEOUT_MAX value on Windows: the maximum timeout is
0x7FFFFFFF milliseconds (around 24.9 days), not 0xFFFFFFFF
milliseconds (around 49.7 days).

Set PY_TIMEOUT_MAX to 0x7FFFFFFF milliseconds, rather than 0xFFFFFFFF
milliseconds.

Fix PY_TIMEOUT_MAX overflow test: replace (us >= PY_TIMEOUT_MAX) with
(us > PY_TIMEOUT_MAX).

bpo-41710: Add pytime_add() and pytime_mul() (GH-28642)

2021-09-30T01:07:11+00:00

Add pytime_add() and pytime_mul() functions to pytime.c to compute
t+t2 and t*k with clamping to [_PyTime_MIN; _PyTime_MAX].

Fix pytime.h: _PyTime_FromTimeval() is not implemented on Windows.

bpo-41710: Add _PyTime_AsTimespec_clamp() (GH-28629)

2021-09-30T00:11:41+00:00

Add the _PyTime_AsTimespec_clamp() function: similar to
_PyTime_AsTimespec(), but clamp to _PyTime_t min/max and don't raise
an exception.

PyThread_acquire_lock_timed() now uses _PyTime_AsTimespec_clamp() to
remove the Py_UNREACHABLE() code path.

* Add _PyTime_AsTime_t() function.
* Add PY_TIME_T_MIN and PY_TIME_T_MAX constants.
* Replace _PyTime_AsTimeval_noraise() with _PyTime_AsTimeval_clamp().
* Add pytime_divide_round_up() function.
* Fix integer overflow in pytime_divide().
* Add pytime_divmod() function.

bpo-45211: Remember the stdlib dir during startup. (gh-28586)

2021-09-28T18:18:28+00:00

During runtime startup we figure out the stdlib dir but currently throw that information away. This change preserves it and exposes it via PyConfig.stdlib_dir, _Py_GetStdlibDir(), and sys._stdlib_dir.

https://bugs.python.org/issue45211

bpo-21302: time.sleep() uses waitable timer on Windows (GH-28483)

2021-09-22T14:09:30+00:00

On Windows, time.sleep() now uses a waitable timer which has a
resolution of 100 ns (10^-7 sec). Previously, it had a solution of 1
ms (10^-3 sec).

* On Windows, time.sleep() now calls PyErr_CheckSignals() before
  resetting the SIGINT event.
* Add _PyTime_As100Nanoseconds() function.
* Complete and update time.sleep() documentation.

Co-authored-by: Livius

[codemod] Fix non-matching bracket pairs (GH-28473)

2021-09-21T23:09:00+00:00

Co-authored-by: Terry Jan Reedy 
Co-authored-by: Serhiy Storchaka 
Co-authored-by: Łukasz Langa