Commit graph

237 commits

Author SHA1 Message Date
Kumar Aditya
e389d6c650
gh-128277: make globals variables thread safe in socket module (#128286) 2024-12-31 19:10:06 +05:30
Mark Shannon
d2f1d917e8
GH-122548: Implement branch taken and not taken events for sys.monitoring (GH-122564) 2024-12-19 16:59:51 +00:00
Victor Stinner
6446408d42
gh-102471, PEP 757: Add PyLong import and export API (#121339)
Co-authored-by: Sergey B Kirpichev <skirpichev@gmail.com>
Co-authored-by: Steve Dower <steve.dower@microsoft.com>
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
2024-12-13 14:24:48 +01:00
Petr Viktorin
db5c5763f3
gh-127330: Update for OpenSSL 3.4 & document+improve the update process (GH-127331)
- Add `git describe` output to headers generated by `make_ssl_data.py`

  This info is more important than the date when the file was generated.
  It does mean that the tool now requires a Git checkout of OpenSSL,
  not for example a release tarball.

- Regenerate the older file to add the info.
  To the other older file, add a note about manual edits.

- Add notes on how to add a new OpenSSL version

- Add 3.4 error messages and multissl tests
2024-11-28 13:29:27 +01:00
Peter Bierma
89125e9f9f
Allow local use of static PyMutex in the C analyzer (#127102) 2024-11-22 08:48:39 +01:00
Victor Stinner
3c2bd66e21
gh-126316: Make grp.getgrall() thread-safe: add a mutex (#127055)
grpmodule.c is no longer built with the limited C API, since PyMutex
is excluded from the limited C API.
2024-11-21 15:47:24 +01:00
Serhiy Storchaka
1f777396f5
gh-122943: Rework support of var-positional parameter in Argument Clinic (GH-122945)
Move creation of a tuple for var-positional parameter out of
_PyArg_UnpackKeywordsWithVararg().
Merge _PyArg_UnpackKeywordsWithVararg() with _PyArg_UnpackKeywords().
Add a new parameter in _PyArg_UnpackKeywords().

The "parameters" and "converters" attributes of ParseArgsCodeGen no
longer contain the var-positional parameter. It is now available as the
"varpos" attribute. Optimize code generation for var-positional
parameter and reuse the same generating code for functions with and without
keyword parameters.

Add special converters for var-positional parameter. "tuple" represents it as
a Python tuple and "array" represents it as a continuous array of PyObject*.
"object" is a temporary alias of "tuple".
2024-11-07 23:40:03 +02:00
Eric Snow
9357fdcaf0
gh-76785: Minor Cleanup of "Cross-interpreter" Code (gh-126457)
The primary objective here is to allow some later changes to be cleaner. Mostly this involves renaming things and moving a few things around.

* CrossInterpreterData -> XIData
* crossinterpdatafunc -> xidatafunc
* split out pycore_crossinterp_data_registry.h
* add _PyXIData_lookup_t
2024-11-07 09:32:42 -07:00
Bénédikt Tran
38a604fd90
gh-99108: Cleanup references to inexisting Modules/_blake2. (GH-126270)
* Remove references to `Modules/_blake2`.

* Remove `Modules/_blake2` entry from CODEOWNERS

The folder does not exist anymore.

* Remove `Modules/_blake2` entry from `Tools/c-analyzer/TODO`
2024-11-01 16:18:44 +00:00
Kirill Podoprigora
bee112a94d
gh-124872: Replace enter/exit events with "switched" (#125532)
Users want to know when the current context switches to a different
context object.  Right now this happens when and only when a context
is entered or exited, so the enter and exit events are synonymous with
"switched".  However, if the changes proposed for gh-99633 are
implemented, the current context will also switch for reasons other
than context enter or exit.  Since users actually care about context
switches and not enter or exit, replace the enter and exit events with
a single switched event.

The former exit event was emitted just before exiting the context.
The new switched event is emitted after the context is exited to match
the semantics users expect of an event with a past-tense name.  If
users need the ability to clean up before the switch takes effect,
another event type can be added in the future.  It is not added here
because YAGNI.

I skipped 0 in the enum as a matter of practice.  Skipping 0 makes it
easier to troubleshoot when code forgets to set zeroed memory, and it
aligns with best practices for other tools (e.g.,
https://protobuf.dev/programming-guides/dos-donts/#unspecified-enum).

Co-authored-by: Richard Hansen <rhansen@rhansen.org>
Co-authored-by: Victor Stinner <vstinner@python.org>
2024-10-16 13:53:21 +02:00
Kirill Podoprigora
d3c82b9cce
gh-125512: Revert "gh-124872: Replace enter/exit events with "switched" (#124776)" (#125513) 2024-10-15 17:42:16 +03:00
Richard Hansen
843d28f59d
gh-124872: Replace enter/exit events with "switched" (#124776)
Users want to know when the current context switches to a different
context object.  Right now this happens when and only when a context
is entered or exited, so the enter and exit events are synonymous with
"switched".  However, if the changes proposed for gh-99633 are
implemented, the current context will also switch for reasons other
than context enter or exit.  Since users actually care about context
switches and not enter or exit, replace the enter and exit events with
a single switched event.

The former exit event was emitted just before exiting the context.
The new switched event is emitted after the context is exited to match
the semantics users expect of an event with a past-tense name.  If
users need the ability to clean up before the switch takes effect,
another event type can be added in the future.  It is not added here
because YAGNI.

I skipped 0 in the enum as a matter of practice.  Skipping 0 makes it
easier to troubleshoot when code forgets to set zeroed memory, and it
aligns with best practices for other tools (e.g.,
https://protobuf.dev/programming-guides/dos-donts/#unspecified-enum).
2024-10-14 12:28:41 -07:00
Bénédikt Tran
e4292c0410
gh-123961: Convert _curses to a multi-phase init module (PEP-489) (#124965) 2024-10-08 13:42:44 +02:00
Bénédikt Tran
4d8e7c40a0
gh-123961: Add a global state to _curses (#124729) 2024-09-29 15:17:20 +00:00
Bénédikt Tran
c00964ecd5
gh-124665: Add _PyCodec_UnregisterError and _codecs._unregister_error (#124677) 2024-09-29 02:25:23 +02:00
Jason Fried
d87482bc4e
gh-119333: Add C api to have contextvar enter/exit callbacks (#119335)
Co-authored-by: Erlend E. Aasland <erlend.aasland@protonmail.com>
2024-09-23 20:40:17 -07:00
Petr Viktorin
aee219f455
gh-123880: Allow recursive import of single-phase-init modules (GH-123950)
Co-authored-by: Shantanu <12621235+hauntsaninja@users.noreply.github.com>
Co-authored-by: Brett Cannon <brett@python.org>
2024-09-20 10:27:34 +02:00
Bénédikt Tran
acb3f875fb
gh-123961: Add curses prefix to global variables in _cursesmodule.c (#124047)
Use the `const char*` type instead of a `const *` for the encoding name.
2024-09-13 12:43:06 +00:00
Bénédikt Tran
403f3ddedc
gh-123961: Remove global variable ModDict in _cursesmodule.c (#123962) 2024-09-13 10:33:13 +00:00
Irit Katriel
1a9d8917a3
gh-121404: split compile.c into compile.c and codegen.c (#123651) 2024-09-09 18:21:51 +01:00
algonell
9017b95ff2
Fix typos (#123775) 2024-09-09 14:58:26 +02:00
Victor Stinner
33b790978d
gh-107954, PEP 741: Add PyConfig_Get()/Set() functions (#123472)
Add PyConfig_Get(), PyConfig_GetInt(), PyConfig_Set() and
PyConfig_Names() functions to get and set the current runtime Python
configuration.

Add visibility and "sys spec" to config and preconfig specifications.

_PyConfig_AsDict() now converts PyConfig.xoptions as a dictionary.

Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
2024-09-02 23:25:08 +02:00
Mark Shannon
bb1d30336e
GH-118093: Make CALL_ALLOC_AND_ENTER_INIT suitable for tier 2. (GH-123140)
* Convert CALL_ALLOC_AND_ENTER_INIT to micro-ops such that tier 2 supports it

* Allow inexact arguments for CALL_ALLOC_AND_ENTER_INIT.
2024-08-20 16:52:58 +01:00
Jonathan Protzenko
325e9b8ef4
gh-99108: Add HACL* Blake2 implementation to hashlib (GH-119316)
This replaces the existing hashlib Blake2 module with a single implementation that uses HACL\*'s Blake2b/Blake2s implementations. We added support for all the modes exposed by the Python API, including tree hashing, leaf nodes, and so on. We ported and merged all of these changes upstream in HACL\*, added test vectors based on Python's existing implementation, and exposed everything needed for hashlib.

This was joint work done with @R1kM.

See the PR for much discussion and benchmarking details.   TL;DR: On many systems, 8-50% faster (!) than `libb2`, on some systems it appeared 10-20% slower than `libb2`.
2024-08-13 21:42:19 +00:00
Brandt Bucher
33903c53db
GH-116017: Get rid of _COLD_EXITs (GH-120960) 2024-07-01 13:17:40 -07:00
Sergey B Kirpichev
6988ff02a5
gh-61103: Support double complex (_Complex) type in ctypes (#120894)
Example:

```pycon
>>> import ctypes
>>> ctypes.__STDC_IEC_559_COMPLEX__
1
>>> libm = ctypes.CDLL('libm.so.6')
>>> libm.clog.argtypes = [ctypes.c_double_complex]
>>> libm.clog.restype = ctypes.c_double_complex
>>> libm.clog(1+1j)
(0.34657359027997264+0.7853981633974483j)
```

Co-authored-by: Nice Zombies <nineteendo19d0@gmail.com>
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
Co-authored-by: Victor Stinner <vstinner@python.org>
2024-07-01 10:54:33 +02:00
neonene
127c1d2771
gh-71587: Drop local reference cache to _strptime module in _datetime (gh-120224)
The _strptime module object was cached in a static local variable (in the datetime.strptime() implementation).  That's a problem when it crosses isolation boundaries, such as reinitializing the runtme or between interpreters.  This change fixes the problem by dropping the static variable, instead always relying on the normal sys.modules cache (via PyImport_Import()).
2024-06-12 10:46:39 -06:00
Eric Snow
105f22ea46
gh-117398: Use Per-Interpreter State for the _datetime Static Types (gh-119929)
We make use of the same mechanism that we use for the static builtin types.  This required a few tweaks.

The relevant code could use some cleanup but I opted to avoid the significant churn in this change.  I'll tackle that separately.

This change is the final piece needed to make _datetime support multiple interpreters.  I've updated the module slot accordingly.
2024-06-03 17:09:18 -06:00
Victor Stinner
0518edc170
gh-119396: Optimize unicode_repr() (#119617)
Use stringlib to specialize unicode_repr() for each string kind
(UCS1, UCS2, UCS4).

Benchmark:

+-------------------------------------+---------+----------------------+
| Benchmark                           | ref     | change2              |
+=====================================+=========+======================+
| repr('abc')                         | 100 ns  | 103 ns: 1.02x slower |
+-------------------------------------+---------+----------------------+
| repr('a' * 100)                     | 369 ns  | 369 ns: 1.00x slower |
+-------------------------------------+---------+----------------------+
| repr(('a' + squote) * 100)          | 1.21 us | 946 ns: 1.27x faster |
+-------------------------------------+---------+----------------------+
| repr(('a' + nl) * 100)              | 1.23 us | 907 ns: 1.36x faster |
+-------------------------------------+---------+----------------------+
| repr(dquote + ('a' + squote) * 100) | 1.08 us | 858 ns: 1.25x faster |
+-------------------------------------+---------+----------------------+
| Geometric mean                      | (ref)   | 1.16x faster         |
+-------------------------------------+---------+----------------------+
2024-05-28 18:05:20 +02:00
Eric Snow
b30d30c747
gh-117398: Statically Allocate the Datetime C-API (GH-119472) 2024-05-23 21:15:52 +02:00
neonene
e12a6780bb
gh-117142: ctypes: Clean up c-analyzer .tsv files (GH-117544)
Co-authored-by: Petr Viktorin <encukou@gmail.com>
2024-05-22 20:30:41 +00:00
Pablo Galindo Salgado
1b22d801b8
gh-118518: Allow perf to work without frame pointers (#112254) 2024-05-05 03:07:29 +02:00
Tian Gao
b034f14a4b
gh-74929: Implement PEP 667 (GH-115153) 2024-05-04 12:12:10 +01:00
Irit Katriel
85af789961
gh-111997: C-API for signalling monitoring events (#116413) 2024-05-04 08:23:50 +00:00
Jelle Zijlstra
ca269e58c2
gh-116126: Implement PEP 696 (#116129)
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
Co-authored-by: Shantanu <12621235+hauntsaninja@users.noreply.github.com>
2024-05-03 06:17:32 -07:00
Brett Simmers
f8290df63f
gh-116738: Make _codecs module thread-safe (#117530)
The module itself is a thin wrapper around calls to functions in
`Python/codecs.c`, so that's where the meaningful changes happened:

- Move codecs-related state that lives on `PyInterpreterState` to a
  struct declared in `pycore_codecs.h`.

- In free-threaded builds, add a mutex to `codecs_state` to synchronize
  operations on `search_path`. Because `search_path_mutex` is used as a
  normal mutex and not a critical section, we must be extremely careful
  with operations called while holding it.

- The codec registry is explicitly initialized as part of
  `_PyUnicode_InitEncodings` to simplify thread-safety.
2024-05-02 18:25:36 -04:00
Eric Snow
03e3e31723
gh-76785: Rename _xxsubinterpreters to _interpreters (gh-117791)
See https://discuss.python.org/t/pep-734-multiple-interpreters-in-the-stdlib/41147/26.
2024-04-24 16:18:24 +00:00
Irit Katriel
c179c0e6cb
gh-117680: make _PyInstructionSequence a PyObject and use it in tests (#117629) 2024-04-17 16:42:04 +01:00
neonene
ef4118222b
gh-117142: Port _ctypes to multi-phase init (GH-117181) 2024-04-10 11:00:01 +00:00
neonene
7e2fef8658
gh-117142: ctypes: Migrate global vars to module state (GH-117189) 2024-03-29 10:40:48 +01:00
Eric Snow
617158e078
gh-76785: Drop PyInterpreterID_Type (gh-117101)
I added it quite a while ago as a strategy for managing interpreter lifetimes relative to the PEP 554 (now 734) implementation.  Relatively recently I refactored that implementation to no longer rely on InterpreterID objects.  Thus now I'm removing it.
2024-03-21 17:15:02 +00:00
Victor Stinner
8bea6c411d
gh-115754: Add Py_GetConstant() function (#116883)
Add Py_GetConstant() and Py_GetConstantBorrowed() functions.

In the limited C API version 3.13, getting Py_None, Py_False,
Py_True, Py_Ellipsis and Py_NotImplemented singletons is now
implemented as function calls at the stable ABI level to hide
implementation details. Getting these constants still return borrowed
references.

Add _testlimitedcapi/object.c and test_capi/test_object.py to test
Py_GetConstant() and Py_GetConstantBorrowed() functions.
2024-03-21 16:07:00 +00:00
Victor Stinner
3cc5ae5c2c
gh-85283: Convert grp extension to the limited C API (#116611)
posixmodule.h: remove check on the limited C API, since these helpers
are not part of the public C API.
2024-03-12 00:46:53 +00:00
Victor Stinner
c5fa796619
gh-116417: Fix make check-c-globals for _testlimitedcapi (#116570)
* Remove unused '_testcapimodule' global in Modules/_testcapi/unicode.c.
* Update c-analyzer to not use the internal C API in
  _testlimitedcapi.c.
2024-03-10 20:19:47 +00:00
Victor Stinner
d9bcdda39c
gh-116417: Add _testlimitedcapi C extension (#116419)
Add a new C extension "_testlimitedcapi" which is only built with the
limited C API.

Move heaptype_relative.c and vectorcall_limited.c from
Modules/_testcapi/ to Modules/_testlimitedcapi/.

* configure: add _testlimitedcapi test extension.
* Update generate_stdlib_module_names.py.
* Update make check-c-globals.

Co-authored-by: Erlend E. Aasland <erlend.aasland@protonmail.com>
2024-03-07 18:31:12 +00:00
Terry Jan Reedy
88b5c665ee
gh-116265: Remove obsolete sentence. (#116284)
Remove sentence in Tools/c-analyzer/README referring to deleted
ignore-globals.txt.
2024-03-04 16:49:42 -05:00
AN Long
ca56c3a172
gh-103092: Add a mutex to make the PRNG state of rotatingtree concurrent-safe (#115301) 2024-03-01 00:04:16 +01:00
Mark Shannon
10fbcd6c5d
GH-115816: Make tier2 optimizer symbols testable, and add a few tests. (GH-115953) 2024-02-27 10:51:26 +00:00
Guido van Rossum
c0fdfba7ff
Rename tier 2 redundancy eliminator to optimizer (#115888)
The original name is just too much of a mouthful.
2024-02-26 08:42:53 -08:00
Victor Stinner
52d1477566
gh-110850: Rename internal PyTime C API functions (#115734)
Rename functions:

* _PyTime_GetSystemClock() => _PyTime_TimeUnchecked()
* _PyTime_GetPerfCounter() => _PyTime_PerfCounterUnchecked()
* _PyTime_GetMonotonicClock() => _PyTime_MonotonicUnchecked()
* _PyTime_GetSystemClockWithInfo() => _PyTime_TimeWithInfo()
* _PyTime_GetMonotonicClockWithInfo() => _PyTime_MonotonicWithInfo()
* _PyTime_GetMonotonicClockWithInfo() => _PyTime_MonotonicWithInfo()

Changes:

* Remove "typedef PyTime_t PyTime_t;" which was
  "typedef PyTime_t _PyTime_t;" before a previous rename.
* Update comments of "Unchecked" functions.
* Remove invalid PyTime_Time() comment.
2024-02-20 22:16:37 +00:00